Albert and Glen had 72 staplers. After Albert gave 16 staplers to Glen. Glen, in return, gave half of his staplers to Albert. In the end, Albert had twice as many staplers as Glen. How many staplers did Albert have at first?
| |
Albert |
Glen |
Total |
| Before |
1 u + 16 |
2 u - 16 |
72 |
| Change 1 |
- 16 |
+ 16 |
|
| After 1 |
1 u |
2 u |
|
| Change 2 |
+ 1 u |
- 1 u |
|
| After 2 |
2 u |
1 u |
72 |
Total number of staplers that Albert and Glen had at first and in the end remains unchanged.
Total number of staplers
= 2 u + 1 u
= 3 u
1 u = 72 ÷ 3 = 24
Number of staplers that Albert had at first
= 1 u + 16
= 24 + 16
= 40
Answer(s): 40
