3 children have a total of $3210.
Adam has $310 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 + 310
Total amount that Adam, Charlie and Bryan
= 1 u + 2 u + 2 u + 310
= 5 u + 310
5 u + 310 = 3210
5 u = 3210 - 310 = 2900
5 u = 2900
1 u = 2900 ÷ 5 = 580
Amount that Adam has
= 2 u + 310
= 2 x 580 + 310
= 1160 + 310
= $1470
(b)
Amount that Charlie has
= 2 u
= $1160
(c)
Amount that Bryan has
= 1 u
= $580
Answer(s): (a) $1470; (b) $1160; (c) $580