3 children have a total of $1580.
Charlie has $250 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 + 250
Total amount that Charlie, Adam and Bryan
= 1 u + 3 u + 3 u + 250
= 7 u + 250
7 u + 250 = 1580
7 u = 1580 - 250 = 1330
7 u = 1330
1 u = 1330 ÷ 7 = 190
Amount that Charlie has
= 3 u + 250
= 3 x 190 + 250
= 570 + 250
= $820
(b)
Amount that Adam has
= 3 u
= $570
(c)
Amount that Bryan has
= 1 u
= $190
Answer(s): (a) $820; (b) $570; (c) $190