3 children have a total of $4520.
Adam has $390 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 + 390
Total amount that Adam, Charlie and Bryan
= 1 u + 2 u + 2 u + 390
= 5 u + 390
5 u + 390 = 4520
5 u = 4520 - 390 = 4130
5 u = 4130
1 u = 4130 ÷ 5 = 826
Amount that Adam has
= 2 u + 390
= 2 x 826 + 390
= 1652 + 390
= $2042
(b)
Amount that Charlie has
= 2 u
= $1652
(c)
Amount that Bryan has
= 1 u
= $826
Answer(s): (a) $2042; (b) $1652; (c) $826