Harry has 295 balls and Gabriel has 407 balls. How many balls must Gabriel give to Harry so that Harry will have 106 less balls than Gabriel?
|
Harry |
Gabriel |
Total |
Before |
295 |
407 |
702 |
Change |
+ ? |
- ? |
|
After |
1 u |
1 u + 106 |
702 |
The total number of balls remains unchanged after Gabriel gives to Harry.
Total number of balls
= 295 + 407
= 702
Total number of balls in the end
= 1 u + 1 u + 106
= 2 u + 106
2 u + 106 = 702
2 u = 702 - 106
2 u = 596
1 u = 596 ÷ 2 = 298
Number of balls that Gabriel must give to Harry
= 298 - 295
= 3
Answer(s): 3