Bryan and Charlie have the same amount of money.
Bryan spends $60 and Charlie spends $90.
In the end, Bryan has 7 times as much money as Charlie.
- How much does each of them have at first?
- How much does Charlie have less than Bryan in the end?
|
Bryan |
Charlie |
Before |
7 u + 60 |
1 u + 90 |
Change |
- 60 |
- 90 |
After |
7 u |
1 u |
(a)
At first
Amount that Bryan has = Amount that Charlie has
7 u + 60 = 1 u + 90
7 u - 1 u = 90 - 60
6 u = 30
1 u = 30 ÷ 6 = 5
Amount that each of them has at first
= 1 u + 90
= 5 + 90
= $95
(b)
Amount that Charlie has less than Bryan in the end
= 7 u - 1 u
= 6 u
= 6 x 5
= $30
Answer(s): (a) $95; (b) $30