Charlie and Abi had the same number of chocolate bars. After Abi gave away 13 chocolate bars and Charlie gave away 51 chocolate bars, Abi had 2 times as many chocolate bars as Charlie. How many chocolate bars did each of them have at first?
| |
Charlie |
Abi |
| Before |
1 u + 51 |
2 u + 13 |
| Change |
- 51 |
- 13 |
| After |
1 u |
2 u |
The number of chocolate bars that Charlie and Abi had at first is the same.
2 u + 13 = 1 u + 51
2 u - 1 u = 51 - 13
1 u = 38
1 u = 38 ÷ 1 = 38
Number of chocolate bars that each of them had at first
= 1 u + 51
= 38 + 51
= 89
Answer(s): 89
