Julie had $12 less than Mary at first. After Mary and Julie spent an equal amount of money, Julie had
47 as much as Mary. How much money did Julie have left?
| |
Julie |
Mary |
Difference |
| Before |
1 u |
1 u + $12 |
$12 |
| Change |
- 1 |
- 1 |
|
| After |
4 p |
7 p |
3 p |
Difference in the amounts between Mary and Julie
= 7 p - 4 p
= 3 p
Since both Mary and Julie spent an equal amount, the difference in the amounts that Mary and Julie had at first and in the end remains unchanged.
3 p = 12
1 p = 12 ÷ 3 = 4
Amount that Julie had left
= 4 p
= 4 x 4
= $16
Answer(s): $16
