Answer:
Option A
Explanation:
Ayush's present age = 10 years.
His mother's.present age + (10 + 20) years = 30 years.
Ayush's father's present age = (30 + 5) years = 35 years.
Ayush's father's age at the time of Ayueh's birth = (35 - 10) Ygars = 25 years.
.'. Ayush's father's age at the time of marriage = (25 - 2) years = 23 years.