Sean and Will had 87 staplers. After Sean gave 23 staplers to Will. Will, in return, gave half of his staplers to Sean. In the end, Sean had twice as many staplers as Will. How many staplers did Sean have at first?
| |
Sean |
Will |
Total |
| Before |
1 u + 23 |
2 u - 23 |
87 |
| Change 1 |
- 23 |
+ 23 |
|
| After 1 |
1 u |
2 u |
|
| Change 2 |
+ 1 u |
- 1 u |
|
| After 2 |
2 u |
1 u |
87 |
Total number of staplers that Sean and Will had at first and in the end remains unchanged.
Total number of staplers
= 2 u + 1 u
= 3 u
1 u = 87 ÷ 3 = 29
Number of staplers that Sean had at first
= 1 u + 23
= 29 + 23
= 52
Answer(s): 52
