3 children have a total of $1640.
Bryan has $350 more than Adam.
Adam has 2 times as much as Charlie.
- How much does Bryan have?
- How much does Adam have?
- How much does Charlie have?
(a)
Choose the person with least money to be 1 u.
Amount that Charlie has = 1 u
Amount that Adam has = 2 u
Amount that Bryan has = 2 u + 350
Total amount that Bryan, Adam and Charlie
= 1 u + 2 u + 2 u + 350
= 5 u + 350
5 u + 350 = 1640
5 u = 1640 - 350 = 1290
5 u = 1290
1 u = 1290 ÷ 5 = 258
Amount that Bryan has
= 2 u + 350
= 2 x 258 + 350
= 516 + 350
= $866
(b)
Amount that Adam has
= 2 u
= $516
(c)
Amount that Charlie has
= 1 u
= $258
Answer(s): (a) $866; (b) $516; (c) $258