Question

The age of father is equal to the sum of the ages of his four children. After 20
years, sum of the ages of the children will be twice the age of the father. Find
the age of the father.

Answer 1

Answer:

Step-by-step explanation:

Let the total age of 4 children be x

And age of father be y

So,

Given x=y

After 20 years

x+(20×4)=2(y+20){20×4since all children grew by 20 yrs}

Substituting y=x we have

y+(20×4)=2(y+20)

y+80=2y+40

y=40

Hence age of father is 40