Sam, Charlie and Henry went shopping. Sam and Charlie spent a total of $213. Sam and Henry spent $672 altogether. Henry spent 4 times as much as Charlie.
- How much did Charlie spend?
- How much did Sam spend?
(a)
Amount that Sam spent = S
Amount that Charlie spent = C
Amount that Henry spent = H
S + H = 672
S + C = 213
C = 1 u
H = 4 x 1 u = 4 u
Amount that Henry spent more than Charlie
= 4 u - 1 u
= 3 u
3 u = 672 - 213
3 u = 459
1 u = 459 ÷ 3 = 153
Amount that Charlie spent
= 1 u
= $153
(b)
Amount that Sam spent
= 213 - 153
= $60
Answer(s): (a) $153; (b) $60