Albert has 360 mochi balls and Henry has 729 mochi balls. How many mochi balls must Henry give to Albert so that Albert will have twice as many mochi balls as Henry?
|
Albert |
Henry |
Total |
Before |
360 |
729 |
1089 |
Change |
+ ? |
- ? |
|
After |
2 u |
1 u |
3 u |
Total number of mochi balls
= 360 + 729
= 1089
Total number of mochi balls
= 2 u + 1 u
= 3 u
3 u = 1089
1 u = 1089 ÷ 3 = 363
Number of mochi balls that Henry must give Albert
= 729 - 363
= 366
Answer(s): 366