Andy and Hilda shared some stamps equally. After Hilda bought 98 stamps and Andy gave 108 stamps away, they had 418 stamps left. How many stamps did each of them have at first?
| |
Andy |
Hilda |
Total |
| Before |
1 u |
1 u |
|
| Change |
+ 98 |
- 108 |
|
| After |
1 u + 98 |
1 u - 108 |
418 |
Andy and Hilda had the same number of stamps at first.
Total number of stamps in the end
= 1 u + 98 + 1 u - 108
= 1 u + 1 u + 98 - 108
= 2 u - 10
2 u - 10 = 418
2 u = 418 + 10
2 u = 428
1 u = 428 ÷ 2 = 214
Number of stamps that each of them had at first
= 1 u
= 214
Answer(s): 214
