Question

manika will be twice old as urvashi is now when urvashi will be as old as manika is now.if the sum of their present age is 50 years,then what is urvashi's present age?

Answer 1

let present age of,
manika be m and urvashi be u
urvashi will be as old as manika in (m-u) years.
age of manika
after (m-u) years is m+m-u= 2m-u
given it is twice as old as urvashi is now
which means 2m-u=2u
implies 2m=3u, m =3u/2

given sum of ages i.e m+u=50
substituting m=3u/2, we get
5u/2=50
implies u=20 and m=30
so uravshis present age is 20