Japheth and Shiyun had the same number of mini cupcakes. After Shiyun gave away 20 mini cupcakes and Japheth gave away 41 mini cupcakes, Shiyun had 4 times as many mini cupcakes as Japheth. How many mini cupcakes did each of them have at first?
| |
Japheth |
Shiyun |
| Before |
1 u + 41 |
4 u + 20 |
| Change |
- 41 |
- 20 |
| After |
1 u |
4 u |
The number of mini cupcakes that Japheth and Shiyun had at first is the same.
4 u + 20 = 1 u + 41
4 u - 1 u = 41 - 20
3 u = 21
1 u = 21 ÷ 3 = 7
Number of mini cupcakes that each of them had at first
= 1 u + 41
= 7 + 41
= 48
Answer(s): 48
