Jack and Cindy had the same number of mini cupcakes. After Cindy gave away 21 mini cupcakes and Jack gave away 46 mini cupcakes, Cindy had 2 times as many mini cupcakes as Jack. How many mini cupcakes did each of them have at first?
| |
Jack |
Cindy |
| Before |
1 u + 46 |
2 u + 21 |
| Change |
- 46 |
- 21 |
| After |
1 u |
2 u |
The number of mini cupcakes that Jack and Cindy had at first is the same.
2 u + 21 = 1 u + 46
2 u - 1 u = 46 - 21
1 u = 25
1 u = 25 ÷ 1 = 25
Number of mini cupcakes that each of them had at first
= 1 u + 46
= 25 + 46
= 71
Answer(s): 71
