Question 1177616

The sum of Jocelyn and Joseph's age is 40. 

let joseph's age be x

and jocelyn's age be y

x+y=40----------------(1)

In 5 years, Joseph will be twice as Jocelyn's present age.

x+5 = 2(y+10)
x+5 = 2y
x-2y=-5-----------------(2) 
Solve 1 & 2

3y=45

y=15 

Jocelyn is 15 years
Joseph is 25 years




How old are they now?