Bobby, Ahmad and Zane went shopping. Bobby and Ahmad spent a total of $264. Bobby and Zane spent $621 altogether. Zane spent 4 times as much as Ahmad.
- How much did Ahmad spend?
- How much did Bobby spend?
(a)
Amount that Bobby spent = B
Amount that Ahmad spent = A
Amount that Zane spent = Z
B + Z = 621
B + A = 264
A = 1 u
Z = 4 x 1 u = 4 u
Amount that Zane spent more than Ahmad
= 4 u - 1 u
= 3 u
3 u = 621 - 264
3 u = 357
1 u = 357 ÷ 3 = 119
Amount that Ahmad spent
= 1 u
= $119
(b)
Amount that Bobby spent
= 264 - 119
= $145
Answer(s): (a) $119; (b) $145