Liam and Reggie had an equal number of mini cupcakes at first. Liam and Reggie ate 30 and 10 mini cupcakes respectively. In the end, Reggie has thrice as many mini cupcakes as Liam. How many mini cupcakes did each of them has at first?
| |
Liam |
Reggie |
| Before |
1 u + 30 |
3 u + 10 |
| Change |
- 30 |
- 10 |
| After |
1 u |
3 u |
Liam and Reggie had an equal number of mini cupcakes at first.
3 u + 10 = 1 u + 30
3 u - 1 u = 30 - 10
2 u = 20
1 u = 20 ÷ 2 = 10
Number of mini cupcakes that each of them had at first
= 1 u + 30
= 10 + 30
= 40
Answer(s): 40
