Hilda and Lucy had the same number of stamps. After Hilda had given away 60 stamps, Lucy had 7 times as many stamps as Hilda. How many stamps did each of them have at first?
| |
Hilda |
Lucy |
| Before |
1 u + 60 |
7 u |
| Change |
- 60 |
|
| After |
1 u |
7 u |
Number of stamps that Lucy had remains unchanged.
Number of stamps that Hilda and Lucy had at first is equal.
7 u = 1 u + 60
7 u - 1 u = 60
6 u = 60
1 u = 60 ÷ 6= 10
Number of stamps that each of them had at first
= 1 u + 60
= 10 + 60
= 70
Answer(s): 70
