# The age of the fa

Let the present age (in year) of father and his two children be x, y and z year, respectively.

Now by given condition, x = 2(y + z) …(i)

and after 20 year, (x + 20) = (y + 20) + (z + 20)

so, x = y + z + 20 or y + z = x - 20 …(ii)

On putting the value of (y + z) in Eq, (i) and get the present age of father

So, x = 2(x -20)

x = 40

Hence, the father’s age is 40 yr.

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