Erika and Emma had the same number of mochi balls at first. After Erika received another 38 mochi balls and Emma gave away 25 mochi balls, Erika had 4 times as many mochi balls as Emma. How many mochi balls did each of them have at first?
| |
Erika |
Emma |
| Before |
4 u - 38 |
1 u + 25 |
| Change |
+ 38 |
- 25 |
| After |
4 u |
1 u |
Erika and Emma had the same number of mochi balls at first.
4 u - 38 = 1 u + 25
4 u - 1 u = 25 + 38
3 u = 63
1 u = 63 ÷ 3 = 21
Number of mochi balls that each of them at first
= 21 + 25
= 46
Answer(s): 46
