Zane has 316 chocolate bars and Albert has 648 chocolate bars. How many chocolate bars must Albert give to Zane so that Zane will have 40 more chocolate bars than Albert?
| |
Zane |
Albert |
Total |
| Before |
316 |
648 |
964 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 40 |
1 u |
964 |
The total number of chocolate bars remains unchanged after Albert gives to Zane.
Total number of chocolate bars
= 316 + 648
= 964
Total number of chocolate bars in the end
= 1 u + 1 u + 40
= 2 u + 40
2 u + 40 = 964
2 u = 964 - 40
2 u = 924
1 u = 924 ÷ 2 = 462
Number of chocolate bars that Albert must give to Zane
= 648 - 462
= 186
Answer(s): 186
