Charlie and Bryan have the same amount of money.
Charlie spends $20 and Bryan spends $90.
In the end, Charlie has 6 times as much money as Bryan.
- How much does each of them have at first?
- How much does Charlie have more than Bryan in the end?
|
Charlie |
Bryan |
Before |
6 u + 20 |
1 u + 90 |
Change |
- 20 |
- 90 |
After |
6 u |
1 u |
(a)
At first
Amount that Charlie has = Amount that Bryan has
6 u + 20 = 1 u + 90
6 u - 1 u = 90 - 20
5 u = 70
1 u = 70 ÷ 5 = 14
Amount that each of them has at first
= 1 u + 90
= 14 + 90
= $104
(b)
Amount that Charlie has more than Bryan in the end
= 6 u - 1 u
= 5 u
= 5 x 14
= $70
Answer(s): (a) $104; (b) $70