Harry has 304 chocolate bars and Bryan has 513 chocolate bars. How many chocolate bars must Bryan give to Harry so that Harry will have 53 more chocolate bars than Bryan?
| |
Harry |
Bryan |
Total |
| Before |
304 |
513 |
817 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 53 |
1 u |
817 |
The total number of chocolate bars remains unchanged after Bryan gives to Harry.
Total number of chocolate bars
= 304 + 513
= 817
Total number of chocolate bars in the end
= 1 u + 1 u + 53
= 2 u + 53
2 u + 53 = 817
2 u = 817 - 53
2 u = 764
1 u = 764 ÷ 2 = 382
Number of chocolate bars that Bryan must give to Harry
= 513 - 382
= 131
Answer(s): 131
