Bryan and Charlie have the same amount of money.
Bryan spends $70 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 Charlie have less than Bryan in the end?
|
Bryan |
Charlie |
Before |
6 u + 70 |
1 u + 90 |
Change |
- 70 |
- 90 |
After |
6 u |
1 u |
(a)
At first
Amount that Bryan has = Amount that Charlie has
6 u + 70 = 1 u + 90
6 u - 1 u = 90 - 70
5 u = 20
1 u = 20 ÷ 5 = 4
Amount that each of them has at first
= 1 u + 90
= 4 + 90
= $94
(b)
Amount that Charlie has less than Bryan in the end
= 6 u - 1 u
= 5 u
= 5 x 4
= $20
Answer(s): (a) $94; (b) $20