Question

The ages of Peter, Margaret and Jack are consecutive odd numbers. The sum of the ages of Peter and Margaret equals Jack’s age before 5 years. Find the ages of Peter, Margaret and Jack.

Answer 1

let x be the first odd number, then x, x+2, x+4 are the consecutive odd numberstherefore we havex +(x+2) -5 = (x+4)solve for x2x +2 -5 = x +4x = 7The three consecutive ages are 7, 9, 11check answers7+9-5 = 1111 = 11