3 children have a total of $2190.
Bryan has $130 more than Adam.
Adam has 2 times as much as Charlie.
- How much does Bryan have?
- How much does Adam have?
- How much does Charlie have?
(a)
Choose the person with least money to be 1 u.
Amount that Charlie has = 1 u
Amount that Adam has = 2 u
Amount that Bryan has = 2 u + 130
Total amount that Bryan, Adam and Charlie
= 1 u + 2 u + 2 u + 130
= 5 u + 130
5 u + 130 = 2190
5 u = 2190 - 130 = 2060
5 u = 2060
1 u = 2060 ÷ 5 = 412
Amount that Bryan has
= 2 u + 130
= 2 x 412 + 130
= 824 + 130
= $954
(b)
Amount that Adam has
= 2 u
= $824
(c)
Amount that Charlie has
= 1 u
= $412
Answer(s): (a) $954; (b) $824; (c) $412