61)

Six years ago, the ratio of A and B was 7 ∶ 8. After 2 years from now, the ratio of their ages will be 9 ∶ 10. What is the sum of the present ages (in years) of A and B?

SSC Selection Post Matric 2022

A)

57

B)

102

C)

72

D)

87

62)

The ratio of the number of animals in zoo A to the number of animals in zoo B is 6 ∶ 5. If zoo B has 65 animals in the beginning, how many animals must be transferred from zoo A to B so that the ratio of animals in zoo A and zoo B becomes 6 ∶ 7?

SSC Selection Post Matric 2022

A)

12

B)

11

C)

13

D)

10

63)

What is the third proportional to 12 and 54?

SSC Selection Post Matric 2022

A)

\(18 \sqrt2\)

B)

4.5

C)

243

D)

42

64)

The ratio of the incomes of A and B is 5 : 7 and their savings are ₹5,000 and ₹9,000, respectively. If the ratio of their expenditures is 3 : 4, then what is the sum of the incomes (in ₹) of A and B?

SSC Selection Post Matric 2022

A)

72,000

B)

84,000

C)

60,000

D)

96,000

65)

The ratio of the incomes of A and B is 3 : 4. The ratio of their expenditure is 7 : 10. If A and B save ₹2,500 and ₹3,000, respectively, then what is the ratio of the income of B to the combined expenditure of A and B?

SSC Selection Post Matric 2022

A)

17 : 18

B)

16 : 17

C)

11 : 13

D)

5 : 7

66)

Seven years ago, the ratio of the ages of A and B was 4 ∶ 5. Eight years hence, the ratio of the ages of A and B will be 9 ∶ 10. What is the sum of their present ages in years?

SSC CPO 2020

A)

32 years

B)

41 years

C)

56 years

D)

82 years

67)

Two numbers are in the ratio 7 ∶ 11. If their HCF is 28, then the difference between the two numbers is:

SSC CPO 2020

A)

28

B)

196

C)

308

D)

112

68)

The present ages of A and B are in the ratio 3 : 4. Twelve years ago, their ages were in the ratio 2 : 3. The sum of the present ages of A and B (in years) is:

SSC CPO 2020

A)

60

B)

84

C)

48

D)

72

69)

In a ΔABC, the bisector of ∠B and ∠C meet at O in the triangle. If ∠BOC = 134°, then the measure of ∠A is:

SSC CPO 2020

A)

88°

B)

52°

C)

116°

D)

104°

70)

Seven years ago, the ratio of the ages of A and B was 4 : 5. Eight years hence, the ratio of the ages of A and B will be 9 : 10. What is the difference between their present ages in years ?

SSC CPO 2020

A)

2

B)

6

C)

3

D)

4