3 children have a total of $3980.
Bryan has $210 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 + 210
Total amount that Bryan, Adam and Charlie
= 1 u + 2 u + 2 u + 210
= 5 u + 210
5 u + 210 = 3980
5 u = 3980 - 210 = 3770
5 u = 3770
1 u = 3770 ÷ 5 = 754
Amount that Bryan has
= 2 u + 210
= 2 x 754 + 210
= 1508 + 210
= $1718
(b)
Amount that Adam has
= 2 u
= $1508
(c)
Amount that Charlie has
= 1 u
= $754
Answer(s): (a) $1718; (b) $1508; (c) $754