MCQOPTIONS
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| 1. |
_How many ways can 10 letters be posted in 5 post boxes, if each of the post boxes can take more than 10 letters?$? |
| A. | 510 |
| B. | 105 |
| C. | 10P5 |
| D. | 10C5 |
| Answer» B. 105 | |