Ben has 323 lollipops and Luke has 538 lollipops. How many lollipops must Luke give to Ben so that Ben will have 45 more lollipops than Luke?
| |
Ben |
Luke |
Total |
| Before |
323 |
538 |
861 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 45 |
1 u |
861 |
The total number of lollipops remains unchanged after Luke gives to Ben.
Total number of lollipops
= 323 + 538
= 861
Total number of lollipops in the end
= 1 u + 1 u + 45
= 2 u + 45
2 u + 45 = 861
2 u = 861 - 45
2 u = 816
1 u = 816 ÷ 2 = 408
Number of lollipops that Luke must give to Ben
= 538 - 408
= 130
Answer(s): 130
