21)

If 4p = 6q = 9r, then p : q : r is equal to:

SSC CHSL 2021

A)

4 : 6 : 9

B)

15 : 13 : 10

C)

9 : 6 : 4

D)

16 : 36 : 81

22)

The present ages of A and B are in the ratio 9 ∶ 10. The ratio of their ages 8 years from now will be 11 ∶ 12. What will be the sum of their ages (in years) after 3 years from now?

SSC CHSL 2021

A)

78

B)

84

C)

82

D)

76

23)

If 9685 is divided into three parts in such a way that one-fourth of the  first part, one-third of the second part and one-sixth of the third part are equal, then what is the first part?

SSC CHSL 2021

A)

2980

B)

2253

C)

4470

D)

2235

24)

If 7A = 4B = 14C, then what is A : B : C ?

SSC CHSL 2021

A)

2 : 4 : 7

B)

4 : 2 : 7

C)

2 : 7 : 4

D)

4 : 7 : 2

25)

If the ratio of A : B is 5 ∶ 4 and B ∶ C is 3 ∶ 5 then the ration of A ∶ B ∶ C is :

SSC CHSL 2021

A)

12 ∶ 15 ∶ 20

B)

15 ∶ 12 ∶ 20

C)

20 ∶ 15 ∶ 12

D)

15 ∶ 20 ∶ 12

26)

The ratio of the ages of A and B, four years ago, was 4 ∶ 5. Eight years hence, the ratio of the ages of A and B will be 11 ∶ 13. What is the ratio of their present ages?

SSC CHSL 2021

A)

7 ∶ 8

B)

8 ∶ 7

C)

11 ∶ 9

D)

9 ∶ 11

27)

The ratio of boys and girls in a school is 6 ∶ 7. If the total number of students in the school is 3289, then what is the number of girls?

SSC CHSL 2021

A)

1876

B)

1984

C)

1569

D)

1771

28)

If A : B = 11 : 7 and B : C = 5 : 19, then what is A : B : C ?

SSC CHSL 2021

A)

35 : 55 : 133

B)

55 : 133 : 35

C)

55 : 35 : 133

D)

35 : 133 : 55

29)

If a : b = 2 : 3 and c : d = 5a : 3b then 2c : 5d is equal to:

SSC CHSL 2021

A)

1 : 1

B)

4 : 9

C)

10 : 9

D)

9 : 10

30)

There are three numbers. If the ratio of the first to the second number is 2 : 7 and that of the second to the third number is 5 : 8, then the ratio of the first to the third number is:

SSC CHSL 2021

A)

1 : 4

B)

5 : 7

C)

5 : 28

D)

7 : 8