3 children have a total of $1520.
Charlie has $170 more than Bryan.
Bryan has 4 times as much as Adam.
- How much does Charlie have?
- How much does Bryan have?
- How much does Adam have?
(a)
Choose the person with least money to be 1 u.
Amount that Adam has = 1 u
Amount that Bryan has = 4 u
Amount that Charlie has = 4 u + 170
Total amount that Charlie, Bryan and Adam
= 1 u + 4 u + 4 u + 170
= 9 u + 170
9 u + 170 = 1520
9 u = 1520 - 170 = 1350
9 u = 1350
1 u = 1350 ÷ 9 = 150
Amount that Charlie has
= 4 u + 170
= 4 x 150 + 170
= 600 + 170
= $770
(b)
Amount that Bryan has
= 4 u
= $600
(c)
Amount that Adam has
= 1 u
= $150
Answer(s): (a) $770; (b) $600; (c) $150