Ahmad has 333 mochi balls and Ben has 554 mochi balls. How many mochi balls must Ben give to Ahmad so that Ahmad will have 55 more mochi balls than Ben?
| |
Ahmad |
Ben |
Total |
| Before |
333 |
554 |
887 |
| Change |
+ ? |
- ? |
|
| After |
1 u + 55 |
1 u |
887 |
The total number of mochi balls remains unchanged after Ben gives to Ahmad.
Total number of mochi balls
= 333 + 554
= 887
Total number of mochi balls in the end
= 1 u + 1 u + 55
= 2 u + 55
2 u + 55 = 887
2 u = 887 - 55
2 u = 832
1 u = 832 ÷ 2 = 416
Number of mochi balls that Ben must give to Ahmad
= 554 - 416
= 138
Answer(s): 138
