3 children have a total of $2930.
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 = 2930
5 u = 2930 - 130 = 2800
5 u = 2800
1 u = 2800 ÷ 5 = 560
Amount that Charlie has
= 2 u + 130
= 2 x 560 + 130
= 1120 + 130
= $1250
(b)
Amount that Adam has
= 2 u
= $1120
(c)
Amount that Bryan has
= 1 u
= $560
Answer(s): (a) $1250; (b) $1120; (c) $560