3 children have a total of $4640.
Charlie has $320 more than Adam.
Adam has 4 times as much as Bryan.
- How much does Charlie have?
- How much does Adam have?
- How much does Bryan have?
(a)
Choose the person with least money to be 1 u.
Amount that Bryan has = 1 u
Amount that Adam has = 4 u
Amount that Charlie has = 4 u + 320
Total amount that Charlie, Adam and Bryan
= 1 u + 4 u + 4 u + 320
= 9 u + 320
9 u + 320 = 4640
9 u = 4640 - 320 = 4320
9 u = 4320
1 u = 4320 ÷ 9 = 480
Amount that Charlie has
= 4 u + 320
= 4 x 480 + 320
= 1920 + 320
= $2240
(b)
Amount that Adam has
= 4 u
= $1920
(c)
Amount that Bryan has
= 1 u
= $480
Answer(s): (a) $2240; (b) $1920; (c) $480