Correct Answer - Option 1 : 23 years
Calculation:
Ayush present age = 10 years.
His mother's present age = (10 + 20) years
⇒ 30 years.
Ayush father's present age = (30 + 5) years
⇒ 35 years.
Ayush father's age at the time of Ayush birth = (35 – 10) years
⇒ 25 years.
Ayush father's age at the time of marriage = (25 – 2) years
⇒ 23 years
∴ Father get married at the age of 23 years