Question

1)Twelve years ago Jane was five times as old as Anne. In three years time,Anne will be half Jane's age How old is each girl at the moment

Answer 1

Explanation:

Twelve years ago Jane was five times as old as Anne.

J-12=5(A-12)

In three years time, Anne will be half of Jane's age.

A+3=1/2(J+3)

Simplify and solve this system of equations:

J-12=5(A-12)

A+3=1/2(J+3)