3 children have a total of $1960.
Charlie has $140 more than Bryan.
Bryan has 3 times as much as Adam.
- How much does Charlie have?
- How much does Bryan have?
- How much does Adam have?
(a)
Choose the person with least money to be 1 u.
Amount that Adam has = 1 u
Amount that Bryan has = 3 u
Amount that Charlie has = 3 u + 140
Total amount that Charlie, Bryan and Adam
= 1 u + 3 u + 3 u + 140
= 7 u + 140
7 u + 140 = 1960
7 u = 1960 - 140 = 1820
7 u = 1820
1 u = 1820 ÷ 7 = 260
Amount that Charlie has
= 3 u + 140
= 3 x 260 + 140
= 780 + 140
= $920
(b)
Amount that Bryan has
= 3 u
= $780
(c)
Amount that Adam has
= 1 u
= $260
Answer(s): (a) $920; (b) $780; (c) $260