Fred and Tammy had the same number of mini cupcakes. After Tammy gave away 18 mini cupcakes and Fred gave away 54 mini cupcakes, Tammy had 4 times as many mini cupcakes as Fred. How many mini cupcakes did each of them have at first?
| |
Fred |
Tammy |
| Before |
1 u + 54 |
4 u + 18 |
| Change |
- 54 |
- 18 |
| After |
1 u |
4 u |
The number of mini cupcakes that Fred and Tammy had at first is the same.
4 u + 18 = 1 u + 54
4 u - 1 u = 54 - 18
3 u = 36
1 u = 36 ÷ 3 = 12
Number of mini cupcakes that each of them had at first
= 1 u + 54
= 12 + 54
= 66
Answer(s): 66
