In four years time khurail mother will be three time as old as khurail . Six years ago his mother was seven times as old as him

Question

Find khurail present age and
His mother age at time of his birth?

Answer 1

Draw a number line, and label points -6, 0 for "now", and 4
put khurail age on top of line and the mothers age at the bottom
in the following way:

4 years from now:
khurail --- x years
mother ---- 3x

now:
khurail ---- x-4
mother ---- 3x-4

6 years ago:
khurail --- x-10
mother --- 3x - 10
but 3x-10 = 7(x-10)
3x-10 = 7x - 70
-4x = -60
x = 15

sub in ....
etc.....