3 children have a total of $3260.
Bryan has $390 more than Adam.
Adam has 3 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 = 3 u
Amount that Bryan has = 3 u + 390
Total amount that Bryan, Adam and Charlie
= 1 u + 3 u + 3 u + 390
= 7 u + 390
7 u + 390 = 3260
7 u = 3260 - 390 = 2870
7 u = 2870
1 u = 2870 ÷ 7 = 410
Amount that Bryan has
= 3 u + 390
= 3 x 410 + 390
= 1230 + 390
= $1620
(b)
Amount that Adam has
= 3 u
= $1230
(c)
Amount that Charlie has
= 1 u
= $410
Answer(s): (a) $1620; (b) $1230; (c) $410