Xavier has 340 mochi balls and Oscar has 725 mochi balls. How many mochi balls must Oscar give to Xavier so that Xavier will have twice as many mochi balls as Oscar?
|
Xavier |
Oscar |
Total |
Before |
340 |
725 |
1065 |
Change |
+ ? |
- ? |
|
After |
2 u |
1 u |
3 u |
Total number of mochi balls
= 340 + 725
= 1065
Total number of mochi balls
= 2 u + 1 u
= 3 u
3 u = 1065
1 u = 1065 ÷ 3 = 355
Number of mochi balls that Oscar must give Xavier
= 725 - 355
= 370
Answer(s): 370