3 children have a total of $2630.
Charlie has $390 more than Bryan.
Bryan has 3 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 = 3 u
Amount that Charlie has = 3 u + 390
Total amount that Charlie, Bryan and Adam
= 1 u + 3 u + 3 u + 390
= 7 u + 390
7 u + 390 = 2630
7 u = 2630 - 390 = 2240
7 u = 2240
1 u = 2240 ÷ 7 = 320
Amount that Charlie has
= 3 u + 390
= 3 x 320 + 390
= 960 + 390
= $1350
(b)
Amount that Bryan has
= 3 u
= $960
(c)
Amount that Adam has
= 1 u
= $320
Answer(s): (a) $1350; (b) $960; (c) $320