Question

Zane, Amanda and Melissa have a combined 25 years. Zane is 2 years older than Amanda and Melissa is 3 years older than Zane. How old is each girl?

Answer 1

z + a + m = 25

z = 2 + a

m = 3 + z

z + z - 2 + 3 + z = 25

3z + 1 = 25

3z = 24

z = 8, a = 6, m = 11

Zane is 8 years old, Amanda is 6 years old, and Melissa is 11 years old.