Bryan has 425 candy canes and Andy has 545 candy canes. How many candy canes must Andy give to Bryan so that Bryan will have 40 more candy canes than Andy?
| |
Bryan |
Andy |
Total |
| Before |
425 |
545 |
970 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 40 |
1 u |
970 |
The total number of candy canes remains unchanged after Andy gives to Bryan.
Total number of candy canes
= 425 + 545
= 970
Total number of candy canes in the end
= 1 u + 1 u + 40
= 2 u + 40
2 u + 40 = 970
2 u = 970 - 40
2 u = 930
1 u = 930 ÷ 2 = 465
Number of candy canes that Andy must give to Bryan
= 545 - 465
= 80
Answer(s): 80
