Cole has 227 beads and Vincent has 440 beads. How many beads must Vincent give to Cole so that Cole will have 81 less beads than Vincent?
|
Cole |
Vincent |
Total |
Before |
227 |
440 |
667 |
Change |
+ ? |
- ? |
|
After |
1 u |
1 u + 81 |
667 |
The total number of beads remains unchanged after Vincent gives to Cole.
Total number of beads
= 227 + 440
= 667
Total number of beads in the end
= 1 u + 1 u + 81
= 2 u + 81
2 u + 81 = 667
2 u = 667 - 81
2 u = 586
1 u = 586 ÷ 2 = 293
Number of beads that Vincent must give to Cole
= 293 - 227
= 66
Answer(s): 66