3 children have a total of $2520.
Charlie has $490 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 + 490
Total amount that Charlie, Bryan and Adam
= 1 u + 2 u + 2 u + 490
= 5 u + 490
5 u + 490 = 2520
5 u = 2520 - 490 = 2030
5 u = 2030
1 u = 2030 ÷ 5 = 406
Amount that Charlie has
= 2 u + 490
= 2 x 406 + 490
= 812 + 490
= $1302
(b)
Amount that Bryan has
= 2 u
= $812
(c)
Amount that Adam has
= 1 u
= $406
Answer(s): (a) $1302; (b) $812; (c) $406