3 children have a total of $1620.
Adam has $430 more than Charlie.
Charlie has 3 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 = 3 u
Amount that Adam has = 3 u + 430
Total amount that Adam, Charlie and Bryan
= 1 u + 3 u + 3 u + 430
= 7 u + 430
7 u + 430 = 1620
7 u = 1620 - 430 = 1190
7 u = 1190
1 u = 1190 ÷ 7 = 170
Amount that Adam has
= 3 u + 430
= 3 x 170 + 430
= 510 + 430
= $940
(b)
Amount that Charlie has
= 3 u
= $510
(c)
Amount that Bryan has
= 1 u
= $170
Answer(s): (a) $940; (b) $510; (c) $170