3 children have a total of $3520.
Charlie has $140 more than Adam.
Adam has 6 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 = 6 u
Amount that Charlie has = 6 u + 140
Total amount that Charlie, Adam and Bryan
= 1 u + 6 u + 6 u + 140
= 13 u + 140
13 u + 140 = 3520
13 u = 3520 - 140 = 3380
13 u = 3380
1 u = 3380 ÷ 13 = 260
Amount that Charlie has
= 6 u + 140
= 6 x 260 + 140
= 1560 + 140
= $1700
(b)
Amount that Adam has
= 6 u
= $1560
(c)
Amount that Bryan has
= 1 u
= $260
Answer(s): (a) $1700; (b) $1560; (c) $260