3 children have a total of $3320.
Bryan has $150 more than Charlie.
Charlie has 2 times as much as Adam.
- How much does Bryan have?
- How much does Charlie 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 Charlie has = 2 u
Amount that Bryan has = 2 u + 150
Total amount that Bryan, Charlie and Adam
= 1 u + 2 u + 2 u + 150
= 5 u + 150
5 u + 150 = 3320
5 u = 3320 - 150 = 3170
5 u = 3170
1 u = 3170 ÷ 5 = 634
Amount that Bryan has
= 2 u + 150
= 2 x 634 + 150
= 1268 + 150
= $1418
(b)
Amount that Charlie has
= 2 u
= $1268
(c)
Amount that Adam has
= 1 u
= $634
Answer(s): (a) $1418; (b) $1268; (c) $634