3 children have a total of $1120.
Bryan has $130 more than Charlie.
Charlie has 2 times as much as Adam.
- How much does Bryan have?
- How much does Charlie 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 Charlie has = 2 u
Amount that Bryan has = 2 u + 130
Total amount that Bryan, Charlie and Adam
= 1 u + 2 u + 2 u + 130
= 5 u + 130
5 u + 130 = 1120
5 u = 1120 - 130 = 990
5 u = 990
1 u = 990 ÷ 5 = 198
Amount that Bryan has
= 2 u + 130
= 2 x 198 + 130
= 396 + 130
= $526
(b)
Amount that Charlie has
= 2 u
= $396
(c)
Amount that Adam has
= 1 u
= $198
Answer(s): (a) $526; (b) $396; (c) $198