Eva and Ivory had the same number of mochi balls at first. After Eva received another 20 mochi balls and Ivory gave away 28 mochi balls, Eva had 4 times as many mochi balls as Ivory. How many mochi balls did each of them have at first?
| |
Eva |
Ivory |
| Before |
4 u - 20 |
1 u + 28 |
| Change |
+ 20 |
- 28 |
| After |
4 u |
1 u |
Eva and Ivory had the same number of mochi balls at first.
4 u - 20 = 1 u + 28
4 u - 1 u = 28 + 20
3 u = 48
1 u = 48 ÷ 3 = 16
Number of mochi balls that each of them at first
= 16 + 28
= 44
Answer(s): 44
