Question

Gabriel is 12 years old, and his younger brother Elias is 2 years old.

How old will each of them be when Gabriel is twice as old as Elias?

Answer 1

Gabriel will be 20, Elias will be 10

We can use an equation to map out and solve for each age.

Years gone by = x

12+x=2(2+x)

12+x=4+2x

x=8

12+8=20, 2+8 =10