Father is 5 years older than mother and mother's age now is thrice the age of the daughter. The daughter is now 10 years old. What was father's age when the daughter was born ?

Options

A. 30 years
B. 20 years
C. 15 years
D. 25 years

Answer

D

Explanation

According to the question
The age of the Father = Mother.s age +5.
The age of the Mother = `3 xx` Daughter.s age
The age of the Daughter = 10 years.
So, the age of the Mother = `3 xx 10 = 30 `years.
The age of the father `= 30 + 5 = 35 `years.
Therefore, the age of the father when daughter was born
= (Father.s age - Daughter.s age)
= (35 - 10) years = 25 years.