3 children have a total of $4160.
Bryan has $240 more than Adam.
Adam has 3 times as much as Charlie.
- How much does Bryan have?
- How much does Adam have?
- How much does Charlie have?
(a)
Choose the person with least money to be 1 u.
Amount that Charlie has = 1 u
Amount that Adam has = 3 u
Amount that Bryan has = 3 u + 240
Total amount that Bryan, Adam and Charlie
= 1 u + 3 u + 3 u + 240
= 7 u + 240
7 u + 240 = 4160
7 u = 4160 - 240 = 3920
7 u = 3920
1 u = 3920 ÷ 7 = 560
Amount that Bryan has
= 3 u + 240
= 3 x 560 + 240
= 1680 + 240
= $1920
(b)
Amount that Adam has
= 3 u
= $1680
(c)
Amount that Charlie has
= 1 u
= $560
Answer(s): (a) $1920; (b) $1680; (c) $560