Question

Arun is 30 yrs older than his daughter.after 12 years,arun will be 3 times old as his daughter. find their present age

Answer 1

let
Arun present age = X
daughter Age = Y
According to ques.
X=Y+30 -----eq 1
and
after 12 years
X+12=3(Y+12) ------eq. 2
solve eq.1 and eq. 2 by any method