3 children have a total of $4470.
Charlie has $130 more than Adam.
Adam has 3 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 = 3 u
Amount that Charlie has = 3 u + 130
Total amount that Charlie, Adam and Bryan
= 1 u + 3 u + 3 u + 130
= 7 u + 130
7 u + 130 = 4470
7 u = 4470 - 130 = 4340
7 u = 4340
1 u = 4340 ÷ 7 = 620
Amount that Charlie has
= 3 u + 130
= 3 x 620 + 130
= 1860 + 130
= $1990
(b)
Amount that Adam has
= 3 u
= $1860
(c)
Amount that Bryan has
= 1 u
= $620
Answer(s): (a) $1990; (b) $1860; (c) $620