3 children have a total of $3160.
Charlie has $100 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 + 100
Total amount that Charlie, Adam and Bryan
= 1 u + 2 u + 2 u + 100
= 5 u + 100
5 u + 100 = 3160
5 u = 3160 - 100 = 3060
5 u = 3060
1 u = 3060 ÷ 5 = 612
Amount that Charlie has
= 2 u + 100
= 2 x 612 + 100
= 1224 + 100
= $1324
(b)
Amount that Adam has
= 2 u
= $1224
(c)
Amount that Bryan has
= 1 u
= $612
Answer(s): (a) $1324; (b) $1224; (c) $612