3 children have a total of $2470.
Charlie has $220 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 + 220
Total amount that Charlie, Adam and Bryan
= 1 u + 2 u + 2 u + 220
= 5 u + 220
5 u + 220 = 2470
5 u = 2470 - 220 = 2250
5 u = 2250
1 u = 2250 ÷ 5 = 450
Amount that Charlie has
= 2 u + 220
= 2 x 450 + 220
= 900 + 220
= $1120
(b)
Amount that Adam has
= 2 u
= $900
(c)
Amount that Bryan has
= 1 u
= $450
Answer(s): (a) $1120; (b) $900; (c) $450