Considering the age of younger one is X
age of younger one = x
the the age of older one = x+10> eqn1
15 years ago
age of younger one = x15
age of older one = 2*(x15)
With eqn1
2*(x15) = x+1015
> 2x30 = x5
> 2xx = 5+30
> x = 25
X=25 is the present age of younger person and 25+10=35 is teh age of older person.
