John, Paul and Glen went shopping. John and Paul spent a total of $289. John and Glen spent $649 altogether. Glen spent 9 times as much as Paul.
- How much did Paul spend?
- How much did John spend?
(a)
Amount that John spent = J
Amount that Paul spent = P
Amount that Glen spent = G
J + G = 649
J + P = 289
P = 1 u
G = 9 x 1 u = 9 u
Amount that Glen spent more than Paul
= 9 u - 1 u
= 8 u
8 u = 649 - 289
8 u = 360
1 u = 360 ÷ 8 = 45
Amount that Paul spent
= 1 u
= $45
(b)
Amount that John spent
= 289 - 45
= $244
Answer(s): (a) $45; (b) $244