3 children have a total of $2720.
Charlie has $130 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 + 130
Total amount that Charlie, Adam and Bryan
= 1 u + 2 u + 2 u + 130
= 5 u + 130
5 u + 130 = 2720
5 u = 2720 - 130 = 2590
5 u = 2590
1 u = 2590 ÷ 5 = 518
Amount that Charlie has
= 2 u + 130
= 2 x 518 + 130
= 1036 + 130
= $1166
(b)
Amount that Adam has
= 2 u
= $1036
(c)
Amount that Bryan has
= 1 u
= $518
Answer(s): (a) $1166; (b) $1036; (c) $518