Wendy and Lucy had the same number of stamps. After Wendy had given away 75 stamps, Lucy had 4 times as many stamps as Wendy. How many stamps did each of them have at first?
| |
Wendy |
Lucy |
| Before |
1 u + 75 |
4 u |
| Change |
- 75 |
|
| After |
1 u |
4 u |
Number of stamps that Lucy had remains unchanged.
Number of stamps that Wendy and Lucy had at first is equal.
4 u = 1 u + 75
4 u - 1 u = 75
3 u = 75
1 u = 75 ÷ 3= 25
Number of stamps that each of them had at first
= 1 u + 75
= 25 + 75
= 100
Answer(s): 100
