Seth, Lui and Zane went shopping. Seth and Lui spent a total of $242. Seth and Zane spent $650 altogether. Zane spent 9 times as much as Lui.
- How much did Lui spend?
- How much did Seth spend?
(a)
Amount that Seth spent = S
Amount that Lui spent = L
Amount that Zane spent = Z
S + Z = 650
S + L = 242
L = 1 u
Z = 9 x 1 u = 9 u
Amount that Zane spent more than Lui
= 9 u - 1 u
= 8 u
8 u = 650 - 242
8 u = 408
1 u = 408 ÷ 8 = 51
Amount that Lui spent
= 1 u
= $51
(b)
Amount that Seth spent
= 242 - 51
= $191
Answer(s): (a) $51; (b) $191