Jack has 115 beads and Will has 451 beads. How many beads must Will give to Jack so that Jack will have 116 less beads than Will?
|
Jack |
Will |
Total |
Before |
115 |
451 |
566 |
Change |
+ ? |
- ? |
|
After |
1 u |
1 u + 116 |
566 |
The total number of beads remains unchanged after Will gives to Jack.
Total number of beads
= 115 + 451
= 566
Total number of beads in the end
= 1 u + 1 u + 116
= 2 u + 116
2 u + 116 = 566
2 u = 566 - 116
2 u = 450
1 u = 450 ÷ 2 = 225
Number of beads that Will must give to Jack
= 225 - 115
= 110
Answer(s): 110