PRACTICE QUESTIONS: RATIO & PROPORTION

 

 

 

 

PRACTICE QUESTIONS: RATIO & PROPORTION

 

Difficulty Range: Easy to Moderate

Total No. of Qs: 10

Total Time: 10 min (targeted proficiency)

 

1. The incomes of A and B are in the ratio 3:4 and their expenditures are in the ratio 5:7.If both of them save 200 Rs each,find the income of A

A.    1200

B.    1800

C.   600

D.   900

 

2. The ratio of the cost prices of two articles A and B is 4:5.The articles are sold at a profit with their selling prices being in the ratio 5:6.If the profit on article A is half of its cost price,find the ratio of the profits on the articles A and B?

A.    7:10

B.    9:11

C.   5:9

D.   10:11

 

3. Three brothers A, B and C together purchased a car of worth 2, 40,000 Rs. Mr. A contributed ½ of the total amount contributed by the other two brothers. Mr.C contributed 1/3 of the total amount contributed by the other two brothers. Find the contribution made by Mr.B.

A.    80,000

B.    1,20,000

C.   60,000

D.   1,00,000

 

4. The expenditures of a hostel are partly fixed and partly proportional to the number of students.If the number of students is 25, the average expenditure per students is 600 Rs and if the number of students is 50, the average expenditure per student is 500 Rs.Find the average expenditure per student if the strength in the hostel is 100.

A.    450

B.    480

C.   400

D.   350

 

5. A bag contains 50 paisa, 20 paisa and 10 paisa coins in the ratio 5:3:1.If the total amount in the bag is 640 Rs,find the difference in the amounts contributed by 50 paisa and 20 paisa coins.

A.    300 rs

B.    400 rs

C.   380 rs

D.   None of these

 

6. The speed of an engine is proportional to the square root of the number of wagons attached to it.Without any wagons attached to it the speed of the engine is 60km/hr.With 16 wagons attached to it the speed of the engine is 40km/hr.Find the maximum number of wagons that can be attached so that the train moves.

A.    144

B.    145

C.   142

D.   143

 

7. If  then the value of  is

A.    2/3

B.    4/9

C.    8/27

D.    None of these

 

8. The ratio of the current ages of Anita and Sunita is 4:3. 8 years hence, the ratio of their ages will be 6:5. then their current ages are

A.    16, 9

B.    16, 12

C.    20, 15

D.    22, 17

 

9. Instead of walking along two adjacent sides of a rectangular field a man took a shot cut along the diagonal and saved a distance equal to half longer side - then the ratio of the shortcut side to the longer side is

 

A.    1/2

B.    2/3

C.   1/4

D.   3/4 

 

10. Fresh grapes contain 90% water by weight while dried grapes contain 20% water by weight. What is the weight of dry grapes available from 20 kg of fresh grapes ?

A.    2 kg

B.    2.4 kg

C.    2.5 kg

D.    None of these