Mary and Winnie had an equal number of caramel apples. After Mary bought another 25 caramel apples and Winnie bought another 4 caramel apples, Mary had four times as many caramel apples as Winnie. Find the number of caramel apples that each of them had at first.
| |
Mary |
Winnie |
| Before |
4 u - 25 |
1 u - 4 |
| Change |
+ 25 |
+ 4 |
| After |
4 u |
1 u |
The number of caramel apples that Mary and Winnie had at first is the same.
4 u - 25 = 1 u - 4
4 u - 1 u = 25 - 4
3 u = 21
1 u = 21 ÷ 3 = 7
Number of caramel apples that each had at first
= 7 - 4
= 3
Answer(s): 3
