Xuan and Elyse had the same number of erasers. After Xuan had given away 62 erasers, Elyse had 3 times as many erasers as Xuan. How many erasers did each of them have at first?
| |
Xuan |
Elyse |
| Before |
1 u + 62 |
3 u |
| Change |
- 62 |
|
| After |
1 u |
3 u |
Number of erasers that Elyse had remains unchanged.
Number of erasers that Xuan and Elyse had at first is equal.
3 u = 1 u + 62
3 u - 1 u = 62
2 u = 62
1 u = 62 ÷ 2= 31
Number of erasers that each of them had at first
= 1 u + 62
= 31 + 62
= 93
Answer(s): 93
