DAILY EXERCISES
Saturday 28 November 2015
QA Fundas
https://www.facebook.com/groups/Rockthecat/permalink/534964130004627/
QA Fundas
Sharmaji Ka Ladka
11 hrs
#
RattaMaro
Post all the shortcut formulas/techniques in Quants here.
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Gausia Sayyed
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Ananya Khanna
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Megha Roy
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Kartikey Sood
Area of |x+a|+|y+b|=k will be 2*k^2
Area of |px+a|+|qy+b|=k will be 2*k^2/(p*q)
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11 hrs
Kartikey Sood
What would be co-efficient of x^10 in ( 1 + x^2 - x^3)^8
{1+x^2(1-x)}^8
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11 hrs
Divyansh Bhateja
Bhai ye smjhaade...kbh smjh nh aata iska concept
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11 hrs
Debarun Bhuyan
Binomial expand Karo 2 times
Limiting conditions lagao
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Chetanya Singh
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11 hrs
Kartikey Sood
Ptolemy's Theorem :
AB × DC + BC × AD = BD × AC
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10
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11 hrs
Debarun Bhuyan
Only for cyclic quadrilateral na?
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10 hrs
Shubham Dahale
Yo
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Kartikey Sood
In an equilateral triangle,
1) sum of distances of any point from the 3 sides = height of triangle. (Viviani's Theorem)
2) Sum of distances of any point from the 3 vertices= side * root 3 approximately
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11 hrs
Sudhanshu Ranjan
side *root(3)/2 hoga na ?
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10 hrs
Sudhanshu Ranjan
Kartikey Sood
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10 hrs
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Kartikey Sood
Distance between centroid and orthocenter = 2* distance between Centroid and circumcenter.
The line containing these points = Euler Line.
If the triangle is isosceles/equilateral, then the Incenter also lies on this
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11 hrs
Akul Chhillar
what is D here?
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5 hrs
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Shubham Chopra
Sum of All digits made by 0,1,2,3,4 . 4!*11111*10 - 3!*1111*10 .
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8 hrs
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Edited
Ashish Porwal
It is only when repetition is nt allowed
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10 hrs
Nishchay Nath
Number of ones should be n times and n-1 times
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Piyush Mehta
Harshit Chopra
Prateek Salecha
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11 hrs
Shiv Mistri
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11 hrs
Indrajeet Singh
Ye i quanta batch se h na
grin emoticon
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11 hrs
Shiv Mistri
😐
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Debarun Bhuyan
|w|+|x|+|y|+|z|=N, integral solutions?
Reply in this comment
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11 hrs
Shiv Mistri
Same
As nonnegative integral
Solution : n+r-1c r-1
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11 hrs
Saurav Suman
8n/3 (n^2+2)
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Shiv Mistri
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11 hrs
Ashish Porwal
Anand Mittal
ye dekh liyo free time mai ye wala formula kaam ka h
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10 hrs
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Nishant Mathur
#
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11 hrs
Sumit Mehta
Tania Kathuria
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11 hrs
Shiv Mistri
Hashtag mat maro .. Ye karo..
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11 hrs
Sharmaji Ka Ladka
Ill delete all hashtags
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Saurav Suman
Total no. Of planes/regions formed by n lines ka formula?
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11 hrs
Priyanka Rani
n(n+1)/2 +1 -n non paralllel
n(n+1)/2 +1 + m (n+1) -n non paralllel nd m paralel
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11 hrs
Saurav Suman
Unbounded?
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Sharmaji Ka Ladka
Area of a right triangle giver its inradius and outradius?
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11 hrs
Shiv Mistri
Area : s*r
Big area : abc/4R
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11 hrs
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Sharmaji Ka Ladka
It was something else
I cant remember,but looked like r^2+2rR....?
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Rahul Sharma
Sum of n natural numbers
-> The sum of first n natural numbers = n (n+1)/2
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11 hrs
Rahul Sharma
Maximum/Minimum
-> If for two numbers x+y=k(=constant), then their PRODUCT is MAXIMUM if x=y(=k/2). The maximum product is then (k^2)/4
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11 hrs
Rahul Sharma
Mixtures
If Q be the volume of a vessel q qty of a mixture of water and wine be removed each time from a mixture n be the number of times this operation be done and A be the final qty of wine in the mixture then ,
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11 hrs
Rahul Sharma
Some Pythagorean triplets:
3,4,5----------(3^2=4+5)
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Sudhanshu Ranjan
sum of a series whose general term is n(n+1)/2 is n(n+1)(n+2)/6. For example : 1+ 3+6+10+15 = 5*6*7/6=35
smile emoticon
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11 hrs
Rahul Sharma
(m + n)! is divisible by m! * n!
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11 hrs
Rahul Sharma
145 is the 3-digit no. expressed as sum of factorials of the individual digits i.e.
145 = 1! + 4! + 5!
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11 hrs
Shiv Mistri
And 5 digit is 40585
tongue emoticon
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11 hrs
Sapna Keshari
4 such numbers exist
and other numbers are 1! and 2!
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Sapna Keshari
Where a no. is of the form a^n – b^n, then,
The no. is always divisible by a – b
Further, the no. is divisible by a + b when n is even and not divisible by
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11 hrs
Rahul Sharma
^LOL
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11 hrs
Sapna Keshari
haha
grin emoticon
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Rahul Sharma
Where a no. is of the form a^n – b^n, then,
The no. is always divisible by a - b
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11 hrs
Abhishek Dangayach
Arpit Kapoor
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11 hrs
Rahul Sharma
Pascal's Triangle for computing Compound Interest (CI)
The traditional formula for computing CI is
CI = P*(1+R/100)^N – P
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11 hrs
Abhishek Dangayach
Is this only applicable when R=10% ??
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10 hrs
Abhishek Dangayach
Rahul Sharma
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Aspirant Cat
Ashmait Singh Bagga
Akash Maan
Sagar Arora
khazanaa
tongue emoticon
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11 hrs
Saikat Nandy
#
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11 hrs
Rahul Sharma
Where 'P' represents principal and 'R' represents the rate of interest, then, the difference between 2 years' simple interest and compound interest is given by P * (R/100)^2
-> The difference between 3 years' simple interest and compound interest is given by (P * R2 *(300+R))/1003
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11 hrs
Rahul Sharma
CALENDAR
-> Calendar repeats after every 400 years.
-> Leap year- it is always divisible by 4, but century years are not leap years unless they are divisible by 400.
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10 hrs
Rahul Sharma
For any regular polygon, the sum of the exterior angles is equal to 360 degrees, hence measure of any external angle is equal to 360/n (where n is the number of sides)
-> For any regular polygon, the sum of interior angles =(n-2)*180 degrees
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10 hrs
Rahul Sharma
For an isosceles trapezium, sum of a pair of opposite sides is equal in length to the sum of the other pair of opposite sides (i.e. AB+CD = AD+BC, taken in order)
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10 hrs
Saksham Aggarwal
R u sure
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10 hrs
Ashish Porwal
Saksham Aggarwal
He is champ of Quants so dont doubt
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Er Shubh Varshney
email Id do
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10 hrs
Rahul Sharma
For any quadrilateral whose diagonals intersect at right angles, the area of the quadrilateral is
1/2*d1*d2, where d1, d2 are the length of the diagonals.
-> For a cyclic quadrilateral, area = root((s-a) * (s-b) * (s-c) * (s-d)), where s=(a + b + c + d
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10 hrs
Rahul Sharma
Given the coordinates (a, b); (c, d); (e, f); (g, h) of a parallelogram , the coordinates of the meeting point of the diagonals can be found out by solving for
[(a + e)/2, (b + f)/2] = [(c + g)/2, (d + h)/2]
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10 hrs
Putin Cat
Area of triangle when coordinates are given!
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Rahul Sharma
Area of a triangle
-> 1/2*base*altitude
-> 1/2*a*b*sin C (or) 1/2*b*c*sin A (or) 1/2*c*a*sin B
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10 hrs
Avon Barksdale
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Harshit Chopra
Resham Sahni
Sanjana Sawarkar
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10 hrs
Rahul Sharma
In any triangle
-> a=b*cos C + c*cos B
-> b=c*cos A + a*cos C
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10 hrs
Rahul Sharma
The ratio of the radii of the circumcircle and incircle of an equilateral triangle is 2:1
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10 hrs
Rahul Sharma
Appollonius Theorem
In a triangle ABC, if AD is the median to side BC, then
AB2 + AC2 = 2(AD2 + BD2) or 2(AD2 + DC2)
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10 hrs
Anuj Kumar
#
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10 hrs
Shiv Mistri
Arey Bhai turn on karo notification.. Kyu Hashtag post kar k.. Thread kharab kar rahe ho
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10 hrs
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Rahul Sharma
Let a be the side of an equilateral triangle, then, if three circles are drawn inside this triangle such that they touch each other, then each circle's radius is given by a/(2*(root(3)+1))
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10 hrs
Shek Avi
#
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Saurav Suman
Chicken nugget..
Maxm unattainable value : ab-a-b;
No. Of values that cannot be obtained: (a-1)(b-1)/2
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10 hrs
Ashish Porwal
CAT level se upar h ye I feel
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10 hrs
Saurav Suman
Just in case
tongue emoticon
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Rashmiranjan Nanda
Abe turn on notification karo # tag ki Maa behen mat karo
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10 hrs
Saurav Suman
Pythagorean triplet general form: n, (n^2-1)/2,(n^2-1)/2 +1. For odd values of n
And
n, (n^2-4)/4, (n^2-4)/4 +2.. when n is even
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Rahul Sharma
DIVISIBILITY :
Divisibility by 2
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Sudhanshu Ranjan
ye sahi dala hai guru
like emoticon
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Shubham Dahale
What is the formula for consecutive discounts given?
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10 hrs
Shiv Mistri
CI wala but negative sign
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Sharmaji Ka Ladka
a+b+ab/100...
NOte:Discount is in negative
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Anuj Kumar Sinha
Venkatesh Chappa
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10 hrs
Saurav Suman
For trapezium abcd.. with ab and cd parallel sides : ( bd^2+ ca^2) = bc^2 + ad^2 +
2ab.cd
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Edited
Anamika Singh
should be ad in thhe rhs?
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Saurav Suman
*edited
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Rahul Sharma
If an equation (i.e. f(x) = 0) contains all positive co-efficients of any powers of x, it has no positive roots.
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10 hrs
Ashish Porwal
Please quote an example sir
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10 hrs
Aspirant Cat
sign change nhi hogaa toh koi +ve root bhi nhi hoga
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Rahul Sharma
For an equation, if all the even powers of x have same sign coefficients and all the odd powers of x have the opposite sign coefficients, then it has no negative roots.
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Ashish Porwal
example please
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Rahul Sharma
For an equation f(x)=0 , the maximum number of positive roots it can have is the number of sign changes in f(x) ; and the maximum number of negative roots it can have is the number of sign changes in f(-x)
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10 hrs
Sapna Keshari
Last min revision :
http://insideiim.com/cat-preparations-last-minute.../...
CAT Prep - Last Minute Tips and Tricks From IIM Raipur - InsideIIM.com
INSIDEIIM.COM
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10 hrs
Rahul Sharma
***VVI***
If an equation f(x)= 0 has only odd powers of x and all these have the same sign coefficients or if f(x) = 0 has only odd powers of x and all these have the same sign coefficients, then the equation has no real roots in each case (except for x=0 in the second case)
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10 hrs
Ridhi Arora
plz xplain in detail using eg
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9 hrs
Sahil Gupta
x+x3+x5+x7=has no real roots except x=0
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Rahul Sharma
(n!)^2 > n^n
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Shiv Mistri
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Rahul Sharma
When a three digit number is reversed and the difference of these two numbers is taken, the middle number is always 9 and the sum of the other two numbers is always 9.
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Shiv Mistri
Ye sab sum the.. _/\_
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Ashish Porwal
_/\_
Rahul Sharma
sir
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Rahul Sharma
Total no. of prime numbers between 1 and 50 is 15
Total no. of prime numbers between 51 and 100 is 10
Total no. of prime numbers between 101 and 200 is 21
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10 hrs
Rahul Sharma
The number of squares in n*m board is given by
= m*(m+1)*(3n-m+1)/6
The number of rectangles in n*m board is given by
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10 hrs
Aim Cat
between 1 and 1000 - 168 primes
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Shiv Mistri
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Shiv Mistri
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Vidushi Naudiyal
Formula clear nai h. cn u please type?
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6 hrs
Shiv Mistri
In question whatever is the value of n.. Put in the answer
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Navneet Tripathi
#\
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Rahul Sharma
If A can finish a work in X time and B can finish the same work in Y time then both of them together can finish that work in (X*Y)/ (X+Y) time.
If A can finish a work in X time and A & B together can finish the same work in S time then B can finish th
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Ravi Pradhan
Amrita Singh
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10 hrs
Rahul Sharma
Where a rectangle is inscribed in an isosceles right angled triangle, then, the length of the rectangle is twice its breadth and the ratio of area of rectangle to area of triangle is 1:2.
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10 hrs
Rashmiranjan Nanda
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Sumeet Bhatia
#
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10 hrs
Ashish Porwal
Priti Jha
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Rashmiranjan Nanda
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Saurav Suman
Side of the square with maxm possible area inside a triangle is base×height/(base+height);
Works for cube in cone as well
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Shiv Mistri
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Tanya Tewari
For selection of non consecutive things in a row n-r+1Cr
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Priyanka Rani
in a circle its n-r+1Cr - n-r-1Cr-2
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Shiv Mistri
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10 hrs
Anuj Kumar Sinha
Mobile ka poora screenshot chipka de aaj
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9 hrs
Shiv Mistri
Train bus rickshaw diaries
tongue emoticon
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Shubham Dahale
√(k√(k..... N times)= k^(1-(1/2^n))
Same case but infinite tyms. =k
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10 hrs
Vaibhav Jain
Vaibhav Jain
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Anuj Kumar Sinha
Shubham Chauhan
Shashank Sharma
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Ankit Gupta
#
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Sharmaji Ka Ladka
Perimeter of triangle=N(say 20)
No. of possible triangles shortcut?
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9 hrs
Saurav Suman
[P^2/48]
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9 hrs
Shiv Mistri
Matlab tune mera uper wala photo save kia or frame ghar pe lgayega?
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Aishwarey Varshney
Ishita Jain
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9 hrs
Mukul Sharma
A^n+1 ,B^n-1 hcf???
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9 hrs
Rahul Sharma
The fifth power of any number has the same
units place digit as the number itself.
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Rahul Sharma
* If a, b and c give remainders p, q and r
respectively, when divided by the same number H,
then H is HCF of (a-p), (b-q), (c-r)
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Shashank Sharma
Pratik Sahoo
aao bhaiyya. Revision krlo
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Rahul Sharma
* If N = x^a*y^b*z^c where x, y, z are prime factors. Then,
Number of factors of N = P = (a + 1)(b + 1)(c + 1)
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Rahul Sharma
Any single digit number written (P-1) times is
divisible by P, where P is a prime number >5.
Examples: 222222 is divisible by 7
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9 hrs
Rahul Sharma
AM ≥ GM ≥ HM is always true. They will be
equal if all elements are equal to each other. If you have
just two values then GM^2 = AM x HM
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9 hrs
Sharmaji Ka Ladka
Shortcut method for finding Rank of word(with and without repetition)
Photo or link
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9 hrs
Sharmaji Ka Ladka
Rahul Sharma
Anuj Kumar Sinha
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9 hrs
Pankaj Palwe
Vijaya Singh
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Rahul Sharma
SI and CI are same for a certain sum of money
(P) at a certain rate (r) per annum for the first year. The
difference after a period of two years is given by
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9 hrs
Anuj Kumar Sinha
Rahul Sharma
bhaiya book likh do _/\_
tongue emoticon
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9 hrs
Shashank Sharma
Sach m. Rahul Sharma on Aag-The Fire hai
tongue emoticon
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9 hrs
Anuj Kumar Sinha
Iske que ni kiye
tongue emoticon
u missed the oppurtunity
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Rahul Sharma
Hands of a clock coincide (or make 180 ) 11
times in every 12 hours. Any other angle is made 22
times in every 12 hours.
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9 hrs
Shiv Mistri
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Sudhanshu Ranjan
Shiv Mistri
ye thoda heavy ho gya
tongue emoticon
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Shiv Mistri
Zhellar- don't know how to
Pronounce.
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9 hrs
Rashmiranjan Nanda
Charansparsh gurudev
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8 hrs
Shiv Mistri
Maine nahi likha hai ye.. Kisi Ne likha hua hai uska dhaap mara:)
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Shiv Mistri
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9 hrs
Shiv Mistri
Raman Sharma
wink emoticon
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1
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8 hrs
Harsh Agarwal
No side common Wala kaise hua?
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8 hrs
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Rahul Sharma
If the sum of two or more positive quantities is
constant, their product is greatest when they are equal
and if their product is constant then their sum is the
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9 hrs
Shiv Mistri
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3
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9 hrs
Sahil Singhal
are these 6 different different series?
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2 hrs
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Rahul Sharma
Centroid and Incenter will always lie inside the triangle.
- For an acute angled triangle, the Circumcenter and the Orthocenter will lie inside the triangle.
- For an obtuse angled triangle, the Circumcenter and the Orthocenter will lie outside the tri
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8 hrs
Lakshay Saraf
Yash Verma
Samaksh Gupta
Rishabh Khandelwal
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8 hrs
Himanshu Jain
Himanshu Jain
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8 hrs
Shiv Mistri
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8 hrs
Rahul Sharma
If a circle can be inscribed in a quadrilateral, its
area is given by = √abcd
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1
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8 hrs
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Edited
Shiv Mistri
Semi perimeter find kiye bina chalega ?
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8 hrs
Rahul Sharma
Haan
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Rahul Sharma
A parallelogram inscribed in a circle is always a
Rectangle. A parallelogram circumscribed about a
circle is always a Rhombus.
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8 hrs
Debarun Bhuyan
Set A has m elements, B has n
Total no of functions
Onto
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8 hrs
Rahul Sharma
Total number of functions : same as distributing n balls into m boxes : n^m ways
Total onto functions : same as distributing balls into boxes such that no box remains empty : ( inclusion exclusion )
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Rahul Sharma
*Each diagonal divides a parallelogram in two triangles of equal area.
*Sum of squares of diagonals = Sum of squares of four sides
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8 hrs
Rahul Sharma
NOTE : From all quadrilaterals with a given area, the square has the least perimeter. For all quadrilaterals with a given perimeter, the square has the greatest area.
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2
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8 hrs
Rahul Sharma
*If a sphere is inscribed in a cube of side a, the radius of the sphere will be a/2. If a sphere is circumscribed about a cube of side a, the radius of the sphere will be √ 3 a/2.
*If a largest possible sphere is inscribed in a cylinder of radius 'a'
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8 hrs
Rahul Sharma
If we know three points A(x1,y1), B(x2,y2 ) and C(x2,y2) of a parallelogram, the fourth point is given by (x1 + x3 – x2, y1 + y3 – y2)
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2
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8 hrs
Rishi Shrivastava
c (x3,y3)*
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6 hrs
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Rahul Sharma
Any set is a subset of itself, but not a proper subset. The empty set, denoted by , is also a subset of any given set X. The empty set is always a proper subset, except of itself. Every other set is then a subset of the universal set.
A set with 'n' elements will have 2^n subsets (2^n – 1 proper subsets)
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8 hrs
Rahul Sharma
Union of two sets is represented as A B and consists of elements that are present in either Set A or Set B or both. Intersection of two sets is represented as A B and consists of elements that are present in both Set A and Set B.
n(AUB) = n(A) + n(B) — n(AintersectionB)
Similarly,
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Rahul Sharma
Binomial :
*There is one more term than the power of the exponent, n. That is, there are terms in the expansion of (a + b)^n.
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8 hrs
Rahul Sharma
Circular arrangement of 'n' distinct items: Fix the first item and then arrange all the other items linearly with respect to the first item. This can be done in (n — 1)! ways.
NOTE : In a necklace, it can be done in (n-1)!/2 ways
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8 hrs
Rahul Sharma
Number of ways of arranging 'n' items out of which `p' are alike, 'q' are alike, 'r' are alike in a line is given by n!/(p!*q!*r!)
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8 hrs
Rahul Sharma
If all terms of an AP are multiplied with k or divided with k, the resultant series will also be an AP with the common difference dk or d/k respectively.
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8 hrs
Rahul Sharma
*Range is a subset of Co-Domain. Co-domain may or may not have values which do not have a preimage in the domain.
*It is not a function if for some value in the domain, the relationship gives more than one value.
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8 hrs
Rahul Sharma
Distance between 2 parallel lines ax+by+c1=0 and ax+by+c2=0
is c1-c2/sqrt(a^2 +b^2)
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1
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8 hrs
Debarun Bhuyan
Rahul ,cubes ka de do, no of ways,painted etc
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8 hrs
Abhishek Bhardwaj
No of cubes with 3 side painted =8
No of cubes with 2 sides painted = 12(a-2)
No of cubes with 1 side painted = 6(a-2)^2
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Edited
Raghav Grover
can someone tell the formula for crease formed when a rectangle opposite sides are joined?'
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7 hrs
Raghav Grover
Rahul Sharma
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7 hrs
Rishi Shrivastava
golden ratio 1.618
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6 hrs
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Kalwa Sai Krishna
Rahul Sharma
bhai ____/\______
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7 hrs
Sharmaji Ka Ladka
Equilateral triangle inside a circle
Circle inside eq. triangle
Circle inside hexagon
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7 hrs
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Edited
Anuj Kumar Sinha
Khtm hogye kya formulas?
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2
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7 hrs
Rahul Sharma
5% hi huye hai
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ek din ke liye itne hi kafi hai
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7 hrs
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Abhishek Agrawal
Ye bhi yaad rakho
Simple h but imp
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7 hrs
Kalwa Sai Krishna
Z^2...typo hoga
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7 hrs
Sharmaji Ka Ladka
z^2 bhai
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Anuj Kumar Sinha
How to solve these types of series que:
Q-2,15,32,53,78,...
Find 20th term
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9
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7 hrs
Anuj Kumar Sinha
Copy pasting my previous post
Since so many ppl are asking.. m making a post here...
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7 hrs
Anuj Kumar Sinha
ok so since yesterday I have got more than 20 msgs asking ki chicknet mcnugget mn-m-n hota hai ya (m-1)(n-1)/2
Aap log bina smjhe formula rat lete ho.. let's see whats the difference
#
Chicken_Mcnugget_2
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7 hrs
Anuj Kumar Sinha
max no of regions in which plane is divided when m non-parallel lines and n parallel lines are drawn
{1 + m(m+1)/2 } + n(m+1)
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6 hrs
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Edited
Shivam Kumar
{n(n+1)/2 +1 } + n(m+1) hoga
unsure emoticon
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1
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6 hrs
Debarun Bhuyan
Confirm Karo ek bar
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Anuj Kumar Sinha
no of times a digit repeats itself while listing integers from 1 to 10^n is n*10^(n-1)
example- no of times digit 8 is repeated from 1- 1000
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Edited
Aditya Tonage
#
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6 hrs
Anuj Kumar Sinha
no of times a no N can be expressed as product of 3 factors-
***special rule
if N can be represented as product of ditinct primes then no of ways are {3^(n-1) +1}/2 where n is no of different primes
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6 hrs
Priyanka Kaintura
#
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6 hrs
Anuj Kumar Sinha
picks theorem I+ B/2 - 1 = A
I= no of integral pts inside
B= no of pts on boundary
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6 hrs
Anuj Kumar
Abe ye Kya hai ?
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Anuj Kumar Sinha
sum upto n terms of fionacci = f(n+2) - f(2)
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6 hrs
Shubham Chauhan
ye kya hai?
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3 hrs
Anuj Kumar Sinha
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tere level ka to ek v ni.. Fir is se q compare kr RHA
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Anuj Kumar Sinha
1) X=√(n+ √(n - (√n + (√n - (√n +.... Find X
X= {√(4n-3) + 1}/2
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6 hrs
Ashish Porwal
bhai ye logic se bhi ho jaaega itne kitne formulaes ratenge
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6 hrs
Anuj Kumar Sinha
For those who want to save time n gud at mugging up
smile emoticon
Though i haven't mugged up..BT it might help others...so posted
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Anuj Kumar Sinha
No of diaginals in a n sided polygon = nc2 - n
Max no of pts of intersection of diagonals in a n sided polygon =nc4 for n>6
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6 hrs
Siddhesh Chavan
no. of diagonal n(n-3)/ 2 yeh bhi hai na ?
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2 hrs
Anuj Kumar Sinha
Same hota h bhai
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2 hrs
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Yash Verma
Cauchy ke formula anyone? For max min
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6 hrs
Anuj Kumar Sinha
Posting
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6 hrs
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Anuj Kumar Sinha
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6 hrs
Yash Verma
Thanks
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6 hrs
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Anuj Kumar Sinha
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6 hrs
Sharmaji Ka Ladka
if mod=0,then?
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5 hrs
Anuj Kumar Sinha
0= divisor itself
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Jaspreet Kaur
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5 hrs
Sahil Singhal
Jaspreet kaur can u plz derive 4th part?
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4 hrs
Jaspreet Kaur
derive ?
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Anuj Kumar
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5 hrs
Aditya Kranti
F(x+1)+F(x-1)=Fx...then cyclicity 6
If - in place of + then cyclicity 3
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5 hrs
Debarun Bhuyan
Shandaar
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4 hrs
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Yashika Chopra
Rajat Bhatia
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4 hrs
Ronak Kadikar
Rahul Kalra
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4 hrs
Rishabh Kumar
Yhi to chahiye tha......
smile emoticon
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4 hrs
Sudhanshu Ranjan
Bhai saare formulae yaad hain , IIM A ko bolo questions badha de
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4 hrs
Aditya Tonage
Sharmaji Ka Ladka n all those who have shared their knowledge and those who will share further, dil se best of luck for all you guys. Dil khush kar diya tum logo ne..
smile emoticon
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Edited
Pankaj Palwe
Incredible India !!
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3 hrs
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Zanabe Ali
If two bodies A and B start from two opposite ends of a linear track with the speed of X and Y respectively and they take x seconds and y seconds respectively to reach their opposite ends after meeting, then X/Y=[x/y]^(1/2)
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4 hrs
Abhishek Dhawan
nCr + nC(r-1) = (n+1)Cr
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2
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4 hrs
Dipesh Monga
Faraz Ahmed
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3 hrs
Ishita Grover
Lilly Theresa
Shubhangi Bulbul Sahu
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3 hrs
Akshat Gupta
Arimardan Bora
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3 hrs
Anuj Kumar Sinha
If no of trailing 0s in n! In any base
Multiply no of zeroes * (p-1)
Where p is highest prime factor of given no. In system base and exact no will b slightly more than that...
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3 hrs
Aditya Kranti
Reverse Engineering
colonthree emoticon
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3 hrs
Zanabe Ali
ye kya kya - sab upar gaya
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Dipesh Monga
if f(x)+f(1/x)=f(x).f(1/x) then f(X)= x^n+1 or-x^n+1
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3 hrs
Madhav Srimohan
If the probability of an event occurring is P, then the probability of that event occurring 'r' times in
'n' trials is = nCr x Pr x (1-P)n-r
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3 hrs
Anuj Kumar Sinha
Kriti Kapoor
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2 hrs
Sudhanshu Ranjan
if A and B complete a job and individually they take a and b hours respectively , more than the time their combination would have taken , then they do the job together in Root(ab) hours. I think ye chhut gya tha
tongue emoticon
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2 hrs
Anuj Kumar Sinha
Post krne hi wala tha
tongue emoticon
WO dog police ka relative wala v krde
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2 hrs
Sudhanshu Ranjan
ok
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2 hrs
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Pankaj Kumar Mandal
Rajat Srivastava
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2 hrs
Abhinav Minocha
Anjana Minocha
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2 hrs
Preetika Tayal
Rashi Jain
Real last minute tips
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2 hrs
Rashi Jain
Maaf karo bhai
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2 hrs
QA
Preetika Tayal
padhle bhai, kya pata 3-4 sawal zada nikal jae
L nikal jaega
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Sudhanshu Ranjan
Anuj Kumar Sinha
If a thief is running at a m/s and a cop is following at b m/s and he is some D distance behind. There is a dog with the cop having speed speed c m/s. The dog runs from the cop to the thief and turns back and comes back to the cop an
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Edited
Anuj Kumar Sinha
Formula kon dalega
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1 hr
Sudhanshu Ranjan
woh nikal legi janta
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Umang Mishra
Karan Setpal
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1 hr
Sagar Arora
Yashu Goel
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1 hr
Tulika Pathak
Tanu Sharma
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18 mins
Aditi Bansal
Gurpreet Singh
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1 min
Sourabh Singh Vball
Feeling tans for cat exam....
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