Shannon and Gabby had an equal number of chocolate bars. After Shannon bought another 30 chocolate bars and Gabby bought another 6 chocolate bars, Shannon had thrice as many chocolate bars as Gabby. Find the number of chocolate bars that each of them had at first.
| |
Shannon |
Gabby |
| Before |
3 u - 30 |
1 u - 6 |
| Change |
+ 30 |
+ 6 |
| After |
3 u |
1 u |
The number of chocolate bars that Shannon and Gabby had at first is the same.
3 u - 30 = 1 u - 6
3 u - 1 u = 30 - 6
2 u = 24
1 u = 24 ÷ 2 = 12
Number of chocolate bars that each had at first
= 12 - 6
= 6
Answer(s): 6
