Bryan and Charlie have the same amount of money.
Bryan spends $80 and Charlie spends $90.
In the end, Bryan has 6 times as much money as Charlie.
- How much does each of them have at first?
- How much does Bryan have more than Charlie in the end?
|
Bryan |
Charlie |
Before |
6 u + 80 |
1 u + 90 |
Change |
- 80 |
- 90 |
After |
6 u |
1 u |
(a)
At first
Amount that Bryan has = Amount that Charlie has
6 u + 80 = 1 u + 90
6 u - 1 u = 90 - 80
5 u = 10
1 u = 10 ÷ 5 = 2
Amount that each of them has at first
= 1 u + 90
= 2 + 90
= $92
(b)
Amount that Bryan has more than Charlie in the end
= 6 u - 1 u
= 5 u
= 5 x 2
= $10
Answer(s): (a) $92; (b) $10