3 children have a total of $3210.
Charlie has $140 more than Adam.
Adam has 2 times as much as Bryan.
- How much does Charlie have?
- How much does Adam have?
- How much does Bryan have?
(a)
Choose the person with least money to be 1 u.
Amount that Bryan has = 1 u
Amount that Adam has = 2 u
Amount that Charlie has = 2 u + 140
Total amount that Charlie, Adam and Bryan
= 1 u + 2 u + 2 u + 140
= 5 u + 140
5 u + 140 = 3210
5 u = 3210 - 140 = 3070
5 u = 3070
1 u = 3070 ÷ 5 = 614
Amount that Charlie has
= 2 u + 140
= 2 x 614 + 140
= 1228 + 140
= $1368
(b)
Amount that Adam has
= 2 u
= $1228
(c)
Amount that Bryan has
= 1 u
= $614
Answer(s): (a) $1368; (b) $1228; (c) $614