3 children have a total of $4920.
Adam has $300 more than Bryan.
Bryan has 3 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 = 3 u
Amount that Adam has = 3 u + 300
Total amount that Adam, Bryan and Charlie
= 1 u + 3 u + 3 u + 300
= 7 u + 300
7 u + 300 = 4920
7 u = 4920 - 300 = 4620
7 u = 4620
1 u = 4620 ÷ 7 = 660
Amount that Adam has
= 3 u + 300
= 3 x 660 + 300
= 1980 + 300
= $2280
(b)
Amount that Bryan has
= 3 u
= $1980
(c)
Amount that Charlie has
= 1 u
= $660
Answer(s): (a) $2280; (b) $1980; (c) $660