3 children have a total of $3030.
Bryan has $390 more than Adam.
Adam has 2 times as much as Charlie.
- How much does Bryan have?
- How much does Adam 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 Adam has = 2 u
Amount that Bryan has = 2 u + 390
Total amount that Bryan, Adam and Charlie
= 1 u + 2 u + 2 u + 390
= 5 u + 390
5 u + 390 = 3030
5 u = 3030 - 390 = 2640
5 u = 2640
1 u = 2640 ÷ 5 = 528
Amount that Bryan has
= 2 u + 390
= 2 x 528 + 390
= 1056 + 390
= $1446
(b)
Amount that Adam has
= 2 u
= $1056
(c)
Amount that Charlie has
= 1 u
= $528
Answer(s): (a) $1446; (b) $1056; (c) $528