31)

A bag contains coins of denomination of Rs. 1, Rs. 2 and Rs. 5 in the ratio of 4 ∶ 5 ∶ 8. If the total value of these coins is Rs. 432, then what is the number of Rs. 2 coins?

SSC CHSL 2021

A)

60

B)

30

C)

50

D)

40

32)

The ratio of the incomes of A and B is 7 : 5. A and B save Rs. 4,000 and Rs. 3,500, respectively. If the expenditure of B is half the expenditure of A, then the total income of A and B (in Rs.) will be:

SSC CHSL 2021

A)

13,500

B)

12,000

C)

10,000

D)

15,000

33)

If a ∶ b = 3 ∶ 5, b ∶ c = 7 ∶ 8 and c ∶ d = 2 ∶ 3, then 2a ∶ 3d is equal to

SSC CHSL 2021

A)

1 ∶ 2

B)

7 ∶ 15

C)

7 ∶ 20

D)

7 ∶ 30

34)

If a : b = 5 : 7, b : c = 8 : 15, then find the value of 8c : 5a.

SSC CHSL 2021

A)

8 : 21

B)

21 : 5

C)

176 : 65

D)

24 : 5

35)

Two numbers are in the ratio of 9 : 7. If the larger number is 56 more than one-seventh of the smaller, then what is the sum of the two numbers?

SSC CHSL 2021

A)

96

B)

130

C)

112

D)

72

36)

Two positive numbers are in the ratio 8 ∶ 13. If the sum of their squares is 2097, then the sum of the two numbers is:

SSC CHSL 2021

A)

64

B)

60

C)

63

D)

65

37)

In a proportion, the product of the first and fourth terms is 70 and that of the second and third terms is 3.5y. The value of y is:

SSC CHSL 2021

A)

17

B)

20

C)

15

D)

22

38)

If two numbers are in the ratio 4 : 7 and the sum of their cubes is 407,000, then the greater number will be:

SSC CHSL 2021

A)

63

B)

70

C)

84

D)

77

39)

Nalini’s younger brother is 12 years old. If the ratio of the age of Nalini to that of her brother is 7 ∶ 6, then what will be ratio in their ages 6 years hence?

SSC CHSL 2021

A)

10 ∶ 9

B)

13 ∶ 12

C)

10 ∶ 6

D)

17 ∶ 15

40)

What is the ratio of the mean proportional between 1.2 and 10.8 to the third proportional to 0.2 and 1.2?

SSC CHSL 2021

A)

3 ∶ 1

B)

1 ∶ 3

C)

2 ∶ 1

D)

1 ∶ 2