Luke has 445 chocolate bars and Owen has 518 chocolate bars. How many chocolate bars must Owen give to Luke so that Luke will have 57 more chocolate bars than Owen?
| |
Luke |
Owen |
Total |
| Before |
445 |
518 |
963 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 57 |
1 u |
963 |
The total number of chocolate bars remains unchanged after Owen gives to Luke.
Total number of chocolate bars
= 445 + 518
= 963
Total number of chocolate bars in the end
= 1 u + 1 u + 57
= 2 u + 57
2 u + 57 = 963
2 u = 963 - 57
2 u = 906
1 u = 906 ÷ 2 = 453
Number of chocolate bars that Owen must give to Luke
= 518 - 453
= 65
Answer(s): 65
