3 children have a total of $3860.
Adam has $280 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 + 280
Total amount that Adam, Charlie and Bryan
= 1 u + 2 u + 2 u + 280
= 5 u + 280
5 u + 280 = 3860
5 u = 3860 - 280 = 3580
5 u = 3580
1 u = 3580 ÷ 5 = 716
Amount that Adam has
= 2 u + 280
= 2 x 716 + 280
= 1432 + 280
= $1712
(b)
Amount that Charlie has
= 2 u
= $1432
(c)
Amount that Bryan has
= 1 u
= $716
Answer(s): (a) $1712; (b) $1432; (c) $716