Samantha and Olivia had an equal number of chocolate bars at first. After Samantha bought another 13 chocolate bars and Olivia lost 11 chocolate bars, Samantha had four times as many chocolate bars as Olivia. Find the number of chocolate bars each of them had at first.
|
Samantha |
Olivia |
Before |
4 u - 13 |
1 u + 11 |
Change |
+ 13 |
- 11 |
After |
4 u |
1 u |
The number of chocolate bars that Samantha and Olivia at first is the same.
4 u - 13 = 1 u + 11
4 u - 1 u = 11 + 13
3 u = 24
1 u = 24 ÷ 3 = 8
Number of chocolate bars that each of them had at first
= 1 u + 11
= 8 + 11
= 19
Answer(s): 19