Charlie and Bryan have the same amount of money.
Charlie spends $20 and Bryan spends $40.
In the end, Charlie has 5 times as much money as Bryan.
- How much does each of them have at first?
- How much does Bryan have less than Charlie in the end?
|
Charlie |
Bryan |
Before |
5 u + 20 |
1 u + 40 |
Change |
- 20 |
- 40 |
After |
5 u |
1 u |
(a)
At first
Amount that Charlie has = Amount that Bryan has
5 u + 20 = 1 u + 40
5 u - 1 u = 40 - 20
4 u = 20
1 u = 20 ÷ 4 = 5
Amount that each of them has at first
= 1 u + 40
= 5 + 40
= $45
(b)
Amount that Bryan has less than Charlie in the end
= 5 u - 1 u
= 4 u
= 4 x 5
= $20
Answer(s): (a) $45; (b) $20