Charlie and Bryan have the same amount of money.
Charlie spends $10 and Bryan spends $30.
In the end, Charlie has 6 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 |
6 u + 10 |
1 u + 30 |
Change |
- 10 |
- 30 |
After |
6 u |
1 u |
(a)
At first
Amount that Charlie has = Amount that Bryan has
6 u + 10 = 1 u + 30
6 u - 1 u = 30 - 10
5 u = 20
1 u = 20 ÷ 5 = 4
Amount that each of them has at first
= 1 u + 30
= 4 + 30
= $34
(b)
Amount that Bryan has less than Charlie in the end
= 6 u - 1 u
= 5 u
= 5 x 4
= $20
Answer(s): (a) $34; (b) $20