Andy and Xuan had the same number of mochi balls. After Xuan gave away 17 mochi balls and Andy gave away 46 mochi balls, Xuan had 2 times as many mochi balls as Andy. How many mochi balls did each of them have at first?
| |
Andy |
Xuan |
| Before |
1 u + 46 |
2 u + 17 |
| Change |
- 46 |
- 17 |
| After |
1 u |
2 u |
The number of mochi balls that Andy and Xuan had at first is the same.
2 u + 17 = 1 u + 46
2 u - 1 u = 46 - 17
1 u = 29
1 u = 29 ÷ 1 = 29
Number of mochi balls that each of them had at first
= 1 u + 46
= 29 + 46
= 75
Answer(s): 75
