Oliver, Neave and Charlie went shopping. Oliver and Neave spent a total of $237. Oliver and Charlie spent $672 altogether. Charlie spent 6 times as much as Neave.
- How much did Neave spend?
- How much did Oliver spend?
(a)
Amount that Oliver spent = O
Amount that Neave spent = N
Amount that Charlie spent = C
O + C = 672
O + N = 237
N = 1 u
C = 6 x 1 u = 6 u
Amount that Charlie spent more than Neave
= 6 u - 1 u
= 5 u
5 u = 672 - 237
5 u = 435
1 u = 435 ÷ 5 = 87
Amount that Neave spent
= 1 u
= $87
(b)
Amount that Oliver spent
= 237 - 87
= $150
Answer(s): (a) $87; (b) $150