Bryan and Charlie have the same amount of money.
Bryan spends $40 and Charlie spends $70.
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 + 40 |
1 u + 70 |
Change |
- 40 |
- 70 |
After |
6 u |
1 u |
(a)
At first
Amount that Bryan has = Amount that Charlie has
6 u + 40 = 1 u + 70
6 u - 1 u = 70 - 40
5 u = 30
1 u = 30 ÷ 5 = 6
Amount that each of them has at first
= 1 u + 70
= 6 + 70
= $76
(b)
Amount that Charlie has less than Bryan in the end
= 6 u - 1 u
= 5 u
= 5 x 6
= $30
Answer(s): (a) $76; (b) $30