Claire and Chloe had an equal number of chocolate bars at first. After Claire bought another 13 chocolate bars and Chloe lost 27 chocolate bars, Claire had thrice as many chocolate bars as Chloe. Find the number of chocolate bars each of them had at first.
| |
Claire |
Chloe |
| Before |
3 u - 13 |
1 u + 27 |
| Change |
+ 13 |
- 27 |
| After |
3 u |
1 u |
The number of chocolate bars that Claire and Chloe at first is the same.
3 u - 13 = 1 u + 27
3 u - 1 u = 27 + 13
2 u = 40
1 u = 40 ÷ 2 = 20
Number of chocolate bars that each of them had at first
= 1 u + 27
= 20 + 27
= 47
Answer(s): 47
