Bryan and Dylan had 54 staplers. After Bryan gave 12 staplers to Dylan. Dylan, in return, gave half of his staplers to Bryan. In the end, Bryan had twice as many staplers as Dylan. How many staplers did Bryan have at first?
| |
Bryan |
Dylan |
Total |
| Before |
1 u + 12 |
2 u - 12 |
54 |
| Change 1 |
- 12 |
+ 12 |
|
| After 1 |
1 u |
2 u |
|
| Change 2 |
+ 1 u |
- 1 u |
|
| After 2 |
2 u |
1 u |
54 |
Total number of staplers that Bryan and Dylan had at first and in the end remains unchanged.
Total number of staplers
= 2 u + 1 u
= 3 u
1 u = 54 ÷ 3 = 18
Number of staplers that Bryan had at first
= 1 u + 12
= 18 + 12
= 30
Answer(s): 30
