Samuel and Nora had an equal number of caramel apples at first. After Samuel bought another 3 caramel apples and Nora lost 21 caramel apples, Samuel had thrice as many caramel apples as Nora. Find the number of caramel apples each of them had at first.
| |
Samuel |
Nora |
| Before |
3 u - 3 |
1 u + 21 |
| Change |
+ 3 |
- 21 |
| After |
3 u |
1 u |
The number of caramel apples that Samuel and Nora at first is the same.
3 u - 3 = 1 u + 21
3 u - 1 u = 21 + 3
2 u = 24
1 u = 24 ÷ 2 = 12
Number of caramel apples that each of them had at first
= 1 u + 21
= 12 + 21
= 33
Answer(s): 33
