Betty had $60 less than Sarah at first. After Sarah and Betty spent an equal amount of money, Betty had
38 as much as Sarah. How much money did Betty have left?
| |
Betty |
Sarah |
Difference |
| Before |
1 u |
1 u + $60 |
$60 |
| Change |
- 1 |
- 1 |
|
| After |
3 p |
8 p |
5 p |
Difference in the amounts between Sarah and Betty
= 8 p - 3 p
= 5 p
Since both Sarah and Betty spent an equal amount, the difference in the amounts that Sarah and Betty had at first and in the end remains unchanged.
5 p = 60
1 p = 60 ÷ 5 = 12
Amount that Betty had left
= 3 p
= 3 x 12
= $36
Answer(s): $36
