3 children have a total of $2990.
Charlie has $370 more than Bryan.
Bryan has 2 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 = 2 u
Amount that Charlie has = 2 u + 370
Total amount that Charlie, Bryan and Adam
= 1 u + 2 u + 2 u + 370
= 5 u + 370
5 u + 370 = 2990
5 u = 2990 - 370 = 2620
5 u = 2620
1 u = 2620 ÷ 5 = 524
Amount that Charlie has
= 2 u + 370
= 2 x 524 + 370
= 1048 + 370
= $1418
(b)
Amount that Bryan has
= 2 u
= $1048
(c)
Amount that Adam has
= 1 u
= $524
Answer(s): (a) $1418; (b) $1048; (c) $524