Ratio and Proportion

1.		If a : b = 2 : 5, then (5a + b) : (3a + 2b) is:

15 : 19

15 : 16

12 : 17

12 : 13

2.		Four children Amit, Ben, Curie and David divide a bag of sweets. Amit takes 2/3 of them, Ben takes 1/5 th of the remainder and the rest is equally shared between Curie and David. What fraction of the sweets did Curie or David get?

3/17

2/15

4/15

13/17

3.		The ratio of the ages of A and B is 4/3 : 5/4. By what percent is A’s age more than that of B?

(3) 1/3

5

(6) 2/3

(7) 1/7

4.		Two numbers are in the ratio of 1 : 5. If 5 is added to each number, the ratio becomes 1 : 4. The smaller number is:

16

20

15

12

5.		A bag contains coins of Re.1, Rs.2 and Rs.5 in the ratio of 10 : 9 : 8. The total worth of these coins is Rs. 544. Find the number of Rs. 5 coins.

80

72

64

128

6.		If A : B = 4 : 7, B : C = 3 : 4, C : D = 7 : 11, then A : D is:

3 : 7

3 : 11

7 : 22

7 : 9

7.		The ratio of Income and expenditure of an employee is 5 : 4. If the income of employee is Rs. 18,000 then his savings is:

Rs. 3600

Rs. 3200

Rs. 3000

Rs. 2800

8.		The ratio of the number of students in three classes A, B and C is 3 : 7 : 8. If 20 students shifted from C to B, the ratio of the number of students in B and C would be interchanged. Find the total number of students in all the three classes.

480

400

320

360

9.		Monthly incomes of A and B are in the ratio 3 : 7 whereas their expenses are in the ratio 1 : 3. If each of them saves Rs.2000 at the end of a month, find the annual income of A.

Rs.6000

Rs.72000

Rs.60000

Rs.14400

10.		The monthly income of Amit and Ben are in the ratio of 4 : 3. Their monthly expenses are in the ratio of 3 : 2. However, both saves Rs.600 per month. What is their total Monthly income?

Rs. 6000

Rs. 5600

Rs. 4200

Rs. 4800