3 children have a total of $1500.
Adam has $390 more than Bryan.
Bryan has 2 times as much as Charlie.
- How much does Adam have?
- How much does Bryan 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 Bryan has = 2 u
Amount that Adam has = 2 u + 390
Total amount that Adam, Bryan and Charlie
= 1 u + 2 u + 2 u + 390
= 5 u + 390
5 u + 390 = 1500
5 u = 1500 - 390 = 1110
5 u = 1110
1 u = 1110 ÷ 5 = 222
Amount that Adam has
= 2 u + 390
= 2 x 222 + 390
= 444 + 390
= $834
(b)
Amount that Bryan has
= 2 u
= $444
(c)
Amount that Charlie has
= 1 u
= $222
Answer(s): (a) $834; (b) $444; (c) $222