Luis has 488 lollipops and Oscar has 690 lollipops. How many lollipops must Oscar give to Luis so that Luis will have 48 more lollipops than Oscar?
|
Luis |
Oscar |
Total |
Before |
488 |
690 |
1178 |
Change |
+ ? |
- ? |
|
After |
1 u + 48 |
1 u |
1178 |
The total number of lollipops remains unchanged after Oscar gives to Luis.
Total number of lollipops
= 488 + 690
= 1178
Total number of lollipops in the end
= 1 u + 1 u + 48
= 2 u + 48
2 u + 48 = 1178
2 u = 1178 - 48
2 u = 1130
1 u = 1130 ÷ 2 = 565
Number of lollipops that Oscar must give to Luis
= 690 - 565
= 125
Answer(s): 125