Jeremy has 278 balls and Ian has 426 balls. How many balls must Ian give to Jeremy so that Jeremy will have 60 less balls than Ian?
|
Jeremy |
Ian |
Total |
Before |
278 |
426 |
704 |
Change |
+ ? |
- ? |
|
After |
1 u |
1 u + 60 |
704 |
The total number of balls remains unchanged after Ian gives to Jeremy.
Total number of balls
= 278 + 426
= 704
Total number of balls in the end
= 1 u + 1 u + 60
= 2 u + 60
2 u + 60 = 704
2 u = 704 - 60
2 u = 644
1 u = 644 ÷ 2 = 322
Number of balls that Ian must give to Jeremy
= 322 - 278
= 44
Answer(s): 44