Charlie and Adam have the same amount of money.
Charlie spends $30 and Adam spends $90.
In the end, Charlie has 6 times as much money as Adam.
- How much does each of them have at first?
- How much does Adam have less than Charlie in the end?
|
Charlie |
Adam |
Before |
6 u + 30 |
1 u + 90 |
Change |
- 30 |
- 90 |
After |
6 u |
1 u |
(a)
At first
Amount that Charlie has = Amount that Adam has
6 u + 30 = 1 u + 90
6 u - 1 u = 90 - 30
5 u = 60
1 u = 60 ÷ 5 = 12
Amount that each of them has at first
= 1 u + 90
= 12 + 90
= $102
(b)
Amount that Adam has less than Charlie in the end
= 6 u - 1 u
= 5 u
= 5 x 12
= $60
Answer(s): (a) $102; (b) $60