Adam and Charlie have the same amount of money.
Adam spends $20 and Charlie spends $80.
In the end, Adam has 5 times as much money as Charlie.
- How much does each of them have at first?
- How much does Charlie have less than Adam in the end?
|
Adam |
Charlie |
Before |
5 u + 20 |
1 u + 80 |
Change |
- 20 |
- 80 |
After |
5 u |
1 u |
(a)
At first
Amount that Adam has = Amount that Charlie has
5 u + 20 = 1 u + 80
5 u - 1 u = 80 - 20
4 u = 60
1 u = 60 ÷ 4 = 15
Amount that each of them has at first
= 1 u + 80
= 15 + 80
= $95
(b)
Amount that Charlie has less than Adam in the end
= 5 u - 1 u
= 4 u
= 4 x 15
= $60
Answer(s): (a) $95; (b) $60