Sean and Bobby had an equal number of mini cupcakes at first. Sean and Bobby ate 41 and 15 mini cupcakes respectively. In the end, Bobby has thrice as many mini cupcakes as Sean. How many mini cupcakes did each of them has at first?
| |
Sean |
Bobby |
| Before |
1 u + 41 |
3 u + 15 |
| Change |
- 41 |
- 15 |
| After |
1 u |
3 u |
Sean and Bobby had an equal number of mini cupcakes at first.
3 u + 15 = 1 u + 41
3 u - 1 u = 41 - 15
2 u = 26
1 u = 26 ÷ 2 = 13
Number of mini cupcakes that each of them had at first
= 1 u + 41
= 13 + 41
= 54
Answer(s): 54
