# Ratio & Proportion MCQ Questions Answers Quantitative Aptitude

## Ratio & Proportion Questions Answers – Quantitative Aptitude MCQ

1) Find the third Proportional to the numbers 5 and 10.

a) 20

b) 2.5

c) 25

d) 30

Option – a)

2) Ratio of the earnings of A  and B is 4 : 7. If the earnings of A increases by 50% and those of B decreases by 25% , the new ratio of their earnings becomes 8 : 7. What are A’s earnings?

a) Rs 21,000

b) Rs 26,000

c) Rs 28,000

Option – d)

3) Ratio of boys to the girls in a class is 5 : 4. Which of the following cannot be the number of students in the class ?

a) 45

b) 72
c) 108

d) 98

Option – d)

4) The third proportional to 0.36 and 0.48 is :

a) 0.1728

b) 0.64

c) 0.42

d) 0.94

Option – b)

5) What should be subtracted from each of the numbers 54,71,75 and 99, so that the remainders are in continued proportion?

a) 9

b) 7

c) 4

d) 3

Option – d)

6) If 40% of a number is equal to two-third of another number, what is the  ratio of first number to the second number ?

a) 2 : 5

b) 3 : 7

c) 5 : 3

d) 7 : 3

Option – c)

7) The ratio of sprit and water in a mixture is 1 : 3. If the volume of the solution is increased by 25% by adding spirit only. What is the resultant ratio of spirit and water ?

a) 2 : 3

b) 1 : 4

c) 1 : 2

d) None of these

Option – a)

8) Rs. 120 are divided among A, B,C such that A’s share is Rs. 20 more than B’s and Rs.20 less than C’s. What is B’s share

a) Rs 10

b) Rs 20

c) Rs 24

d) Rs 28

Option – b)

9) Two numbers are in the ratio 3 : 5. If each number is increased by 10, the ratio becomes 5 : 7 the numbers are

a) 3,5

b) 7,9

c) 13,22

d) 15,25

Option – d)

10) Two Numbers are respectively 20% and 50% more than a third number. The ratio of the two numbers is :

a) 2 : 5

b) 3 : 5

c) 4 : 5

d) 6 : 7