Total age of father and son is 42 years and the difference of their ages is 22 years. What is son’s age now?
সমাধান
সঠিক উত্তর: Option A
Here,
Fathers age =x
Sons age=y
so,x+y=42…...(1)
x-y=22…..(2)
Doing 1-2,
we get,
2y=20
or, y=10
So, son’s age=10
