Question

I want the answer of the 5th question

Answer 1

Let the father's age is X and son's be Y. Then,
X+Y= 48
and
X-6=5(Y-6)
X=5Y-30+6
X=5Y-24
So,
5Y-24+Y=48
6Y=48+24
6Y=72
Y=12 yrs
and hence X=48-12=36 yrs