3 children have a total of $2640.
Charlie has $330 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 + 330
Total amount that Charlie, Bryan and Adam
= 1 u + 2 u + 2 u + 330
= 5 u + 330
5 u + 330 = 2640
5 u = 2640 - 330 = 2310
5 u = 2310
1 u = 2310 ÷ 5 = 462
Amount that Charlie has
= 2 u + 330
= 2 x 462 + 330
= 924 + 330
= $1254
(b)
Amount that Bryan has
= 2 u
= $924
(c)
Amount that Adam has
= 1 u
= $462
Answer(s): (a) $1254; (b) $924; (c) $462