3 children have a total of $1390.
Adam has $210 more than Charlie.
Charlie has 2 times as much as Bryan.
- How much does Adam have?
- How much does Charlie 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 Charlie has = 2 u
Amount that Adam has = 2 u + 210
Total amount that Adam, Charlie and Bryan
= 1 u + 2 u + 2 u + 210
= 5 u + 210
5 u + 210 = 1390
5 u = 1390 - 210 = 1180
5 u = 1180
1 u = 1180 ÷ 5 = 236
Amount that Adam has
= 2 u + 210
= 2 x 236 + 210
= 472 + 210
= $682
(b)
Amount that Charlie has
= 2 u
= $472
(c)
Amount that Bryan has
= 1 u
= $236
Answer(s): (a) $682; (b) $472; (c) $236