3 children have a total of $4440.
Charlie has $390 more than Adam.
Adam has 2 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 = 2 u
Amount that Charlie has = 2 u + 390
Total amount that Charlie, Adam and Bryan
= 1 u + 2 u + 2 u + 390
= 5 u + 390
5 u + 390 = 4440
5 u = 4440 - 390 = 4050
5 u = 4050
1 u = 4050 ÷ 5 = 810
Amount that Charlie has
= 2 u + 390
= 2 x 810 + 390
= 1620 + 390
= $2010
(b)
Amount that Adam has
= 2 u
= $1620
(c)
Amount that Bryan has
= 1 u
= $810
Answer(s): (a) $2010; (b) $1620; (c) $810