Bryan had $30 more than Betty. After Betty spent
25 of her money, Bryan had five times as much money as Betty. How much money did Bryan have at first?
| |
Bryan |
Betty |
| Before |
15 u |
5 u |
| Change |
|
- 2 u |
| After |
15 u |
3 u |
Amount that Bryan had in the end
= 5 x 3 u
= 15 u
If Betty had another $30 at first, the amounts that Bryan and Betty each had at first will be the same.
15 u = 5 u + 30
15 u - 5 u = 30
10 u = 30
1 u = 30 ÷ 10 = 3
Amount Bryan had at first
= 15 u
= 15 x 3
= $45
Answer(s): $45
