Lui, Brandon and Simon went shopping. Lui and Brandon spent a total of $299. Lui and Simon spent $662 altogether. Simon spent 4 times as much as Brandon.
- How much did Brandon spend?
- How much did Lui spend?
(a)
Amount that Lui spent = L
Amount that Brandon spent = B
Amount that Simon spent = S
L + S = 662
L + B = 299
B = 1 u
S = 4 x 1 u = 4 u
Amount that Simon spent more than Brandon
= 4 u - 1 u
= 3 u
3 u = 662 - 299
3 u = 363
1 u = 363 ÷ 3 = 121
Amount that Brandon spent
= 1 u
= $121
(b)
Amount that Lui spent
= 299 - 121
= $178
Answer(s): (a) $121; (b) $178