3 children have a total of $3620.
Adam has $370 more than Bryan.
Bryan has 2 times as much as Charlie.
- How much does Adam have?
- How much does Bryan have?
- How much does Charlie have?
(a)
Choose the person with least money to be 1 u.
Amount that Charlie has = 1 u
Amount that Bryan has = 2 u
Amount that Adam has = 2 u + 370
Total amount that Adam, Bryan and Charlie
= 1 u + 2 u + 2 u + 370
= 5 u + 370
5 u + 370 = 3620
5 u = 3620 - 370 = 3250
5 u = 3250
1 u = 3250 ÷ 5 = 650
Amount that Adam has
= 2 u + 370
= 2 x 650 + 370
= 1300 + 370
= $1670
(b)
Amount that Bryan has
= 2 u
= $1300
(c)
Amount that Charlie has
= 1 u
= $650
Answer(s): (a) $1670; (b) $1300; (c) $650