Let us assume their present ages be x and 2x years;

Correct Option: C

Let us assume their present ages be x and 2x years; then
5 years ago ages of the brothers was x - 5 and 2x - 5 years.
According to question, 5 years ago the ratio was 1: 3
( x - 5)/(2x - 5) = 1/3
⇒ 3x-15 = 2x -5
∵ x = 10
Hence, their present ages 10 years and 20 years.
Ages after 5 years will be 10 +5 and 20 + 5 Years
Required ratio = 10+5/20 + 5 = 15/25 = 3/5 = 3 : 5

Sum of age of A and B, 3 years ago = (18 x 2) = 36 years
Sum of ages of A, B and C, now = (22 x 3) = 66 years
Sum of ages of A and B, now = (36 + 6) years = 42 years
∴ C's present age = (66 - 42) years = 24 years

Correct Option: A

Sum of age of A and B, 3 years ago = (18 x 2) = 36 years
Sum of ages of A, B and C, now = (22 x 3) = 66 years
Sum of ages of A and B, now = (36 + 6) years = 42 years
∴ C's present age = (66 - 42) years = 24 years

Let Rita's age of 2 years ago be x years.
∴ Pushpa's present age = 2x years
⇒ 2x - (x + 2) = 2

Correct Option: B

Let Rita's age of 2 years ago be x years.
∴ Pushpa's present age = 2x years
⇒ 2x - (x + 2) = 2
⇒ x = 4
∵ Pushpa's present age = 8 years.

Let the present age of the Vikas be x years. Then,
17 - 5 = (x - 5)/3

Correct Option: C

Let the present age of the Vikas be x years. Then,
17 - 5 = (x - 5)/3
⇒ x - 5 = 36
∴ x = 41 years

Let the son's be x years, then father's age = 4x years
∴ (4x - 5) = 9(x - 5)

Correct Option: B

Let the son's be x years, then father's age = 4x years
∴ (4x - 5) = 9(x - 5)
⇒ 5x = 40
⇒ x = 8
∴ Present age of the man = 32 years