1)

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

2)

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

3)

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

4)

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°

5)

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