Ratio & proportion aptitude

Question 1

If A : B = 2 : 3 and B : C = 4 : 5, what is A : B : C?

Accepted Answer

8 : 12 : 15

Answer

2 : 3 : 5

Answer

4 : 6 : 5

Answer

8 : 12 : 10

Question 2

₹2,340 is divided among A, B and C in the ratio 1/2 : 1/3 : 1/4. What is C's share?

Accepted Answer

₹540

Answer

₹585

Answer

₹720

Answer

₹480

Question 3

What is the fourth proportional to 6, 9 and 14?

Accepted Answer

21

Answer

18

Answer

17

Answer

24

Question 4

What is the mean proportional between 9 and 16?

Accepted Answer

12

Answer

12.5

Answer

144

Answer

13

Question 5

Two numbers are in the ratio 3 : 5. If 10 is added to each, the ratio becomes 5 : 7. What is the larger number?

Accepted Answer

25

Answer

20

Answer

35

Answer

30

Question 6

A invests ₹40,000 for 12 months and B invests ₹60,000 for 8 months in a business. Out of a total profit of ₹36,000, what is B's share?

Accepted Answer

₹18,000

Answer

₹21,600

Answer

₹14,400

Answer

₹20,000

Question 7

A starts a business with ₹30,000. After 5 months B joins with ₹40,000. At the end of the year the profit is ₹32,000. What is B's share?

Accepted Answer

₹14,000

Answer

₹18,000

Answer

₹16,000

Answer

₹12,000

Question 8

The incomes of A and B are in the ratio 5 : 3 and their expenditures in the ratio 3 : 1. If each saves ₹4,000, what is A's income?

Accepted Answer

₹10,000

Answer

₹12,000

Answer

₹8,000

Answer

₹15,000