**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

**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

d) Data inadequate

**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

**4) The third proportional to 0.36 and 0.48 is :**

a) 0.1728

b) 0.64

c) 0.42

d) 0.94

**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

**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

**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

**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

**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

**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