**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

11**) A mixture of 729 mL contains milk and water in the ratio 7 : 2. How much more water is added to get a new mixture containing milk and water in the ratio 7 : 3 ?**

a) 81 mL

b) 72 mL

c) 80 mL

d) 78 Ml

**12) If there are Rs 495 in a bag in denominations of one-rupee, 50 paisa and 25 paisa couns, which are in the ratio 1 : 8 : 16. How many 50 paisa coins are there in the bag ?**

a) 50

b) 220

c) 440

d) None of these

**13) Divide 170 into three parts such that the first part is 10 more than the second and its ratio with third part is 2 : 5.**

a) 22 : 35 : 113

b) 35 : 55 : 80

c) 40 : 30 : 100

d) 35 : 65 : 70

**14) The ratio of money with Ram and Rahul is 7 : 17 and that with Rahul and Ajay is 7 : 17. If Ram has Rs 490, Ajay has**

a) Rs 2890

b) Rs 2330

c) Rs 1190

d) Rs 2680

**15) A bag contains an equal number of one rupee, 50 paisa and 25 paisa coins respectively. If the total value is Rs 35, how many coins of each type are there ?**

a) 20

b) 16

c) 18

d) 25

**16) The monthly salary of A,B,C are in the ratio of 2 : 3 : 5 If C’s monthly salary is Rs 1200 more than that of A, then B’s annual salary is**

a) Rs 14400

b) Rs Rs 24000

c) Rs 1200

d) Rs 2000

**17) A dog pursues a cat and takes 5 leaps for every 6 leaps of the cat, but 4 leaps of the dog are equal to 5 leaps of the cat. Compare the speeds of the dog and the cat.**

a) 15 : 22

b) 9 : 25

c) 25 : 21

d) 25 : 24

**18) The ratio of the ages of A and B is 5 : 7 If the difference between the present age of B and that of A,6 yr hence is 2, then what is the total of present ages of A and B ?**

a) 48 yr

b) 52 yr

c) 56 yr

d) None of these

**19) Gold is 19 times as heavy as water and copper 9 times as heavy as water. In what ratio should these metals be mixed so that the mixture may be 15 times as heavy as water ?**

a) 2 : 5

b) 2 : 3

c) 3 : 1

d) 3 : 2

**20) A ratio equivalent to 3 : 7 is :**

a) 3 : 9

b) 6 : 10

c) 9 : 21

d) 18 : 49