Question

Alvin spent half as much as Lorie did on holiday presents this year and Chris spent 3 times more than Alvin did. The total spent between the three of them was $720. How much money did Chris spend? *

Answer 1

Suppose amount spent by Alvin = A

by Lorie = L

by Chris = C

Given :

L = 2A

C = 3A

A + L + C = 720

Substituting L and C in the equation,

A + 2A + 3A = 720

⇒ 6A = 720

⇒ A = 120

C = 3A = 360

Amount spent by Chris = $360