1.  Ravi's brother is 3 yr elder to him. His father was 28 yr of age when his sister was born, while his mother was 26 yr of age when he was born. If his sister was 4 yr of age when his brother was born, the ages of Ravi's father and mother respectively when his brother was born were :
A. 32 yr and 23 yr
B. 32 yr and 29 yr
C. 35 yr and 29 yr
D. 35 yr and 33 yr

Answer: Option A

Explanation:

When Ravi was born, his mother's age was 26 yr and his elder brother was 3 yr elder to him.

Mother's age when brother was born = 26 - 3 = 23 yr

Ravi's father was 28 yr of age when his sister was born and his sister was 4 yr of age when his brother was born.

Age of father when brother was born = 28 + 4 = 32 yr