3 children have a total of $1800.
Charlie has $250 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 + 250
Total amount that Charlie, Adam and Bryan
= 1 u + 2 u + 2 u + 250
= 5 u + 250
5 u + 250 = 1800
5 u = 1800 - 250 = 1550
5 u = 1550
1 u = 1550 ÷ 5 = 310
Amount that Charlie has
= 2 u + 250
= 2 x 310 + 250
= 620 + 250
= $870
(b)
Amount that Adam has
= 2 u
= $620
(c)
Amount that Bryan has
= 1 u
= $310
Answer(s): (a) $870; (b) $620; (c) $310