Risa and Sofia had an equal number of caramel apples at first. After Risa bought another 4 caramel apples and Sofia lost 11 caramel apples, Risa had four times as many caramel apples as Sofia. Find the number of caramel apples each of them had at first.
| |
Risa |
Sofia |
| Before |
4 u - 4 |
1 u + 11 |
| Change |
+ 4 |
- 11 |
| After |
4 u |
1 u |
The number of caramel apples that Risa and Sofia at first is the same.
4 u - 4 = 1 u + 11
4 u - 1 u = 11 + 4
3 u = 15
1 u = 15 ÷ 3 = 5
Number of caramel apples that each of them had at first
= 1 u + 11
= 5 + 11
= 16
Answer(s): 16
