Eric, Liam and Simon went shopping. Eric and Liam spent a total of $220. Eric and Simon spent $680 altogether. Simon spent 6 times as much as Liam.
- How much did Liam spend?
- How much did Eric spend?
(a)
Amount that Eric spent = E
Amount that Liam spent = L
Amount that Simon spent = S
E + S = 680
E + L = 220
L = 1 u
S = 6 x 1 u = 6 u
Amount that Simon spent more than Liam
= 6 u - 1 u
= 5 u
5 u = 680 - 220
5 u = 460
1 u = 460 ÷ 5 = 92
Amount that Liam spent
= 1 u
= $92
(b)
Amount that Eric spent
= 220 - 92
= $128
Answer(s): (a) $92; (b) $128