3 children have a total of $2190.
Adam has $380 more than Charlie.
Charlie has 2 times as much as Bryan.
- How much does Adam have?
- How much does Charlie 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 Charlie has = 2 u
Amount that Adam has = 2 u + 380
Total amount that Adam, Charlie and Bryan
= 1 u + 2 u + 2 u + 380
= 5 u + 380
5 u + 380 = 2190
5 u = 2190 - 380 = 1810
5 u = 1810
1 u = 1810 ÷ 5 = 362
Amount that Adam has
= 2 u + 380
= 2 x 362 + 380
= 724 + 380
= $1104
(b)
Amount that Charlie has
= 2 u
= $724
(c)
Amount that Bryan has
= 1 u
= $362
Answer(s): (a) $1104; (b) $724; (c) $362