3 children have a total of $4140.
Charlie has $220 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 + 220
Total amount that Charlie, Bryan and Adam
= 1 u + 2 u + 2 u + 220
= 5 u + 220
5 u + 220 = 4140
5 u = 4140 - 220 = 3920
5 u = 3920
1 u = 3920 ÷ 5 = 784
Amount that Charlie has
= 2 u + 220
= 2 x 784 + 220
= 1568 + 220
= $1788
(b)
Amount that Bryan has
= 2 u
= $1568
(c)
Amount that Adam has
= 1 u
= $784
Answer(s): (a) $1788; (b) $1568; (c) $784