How many ways can 10 letters be posted in 5 post boxes, if each of the post boxes can take more than 10 letters? Pick one:  A) 5(10)  B) 10(5)  C) 10P5  D) 10C5  E) NOne
Solution:   Each of the 10 letters can be posted in any of the 5 boxes.   So, the first letter has 5 options, so does the second letter and so on and so forth for all of the 10 letters.   i.e.5 *5 *5 *. . . .*5 (up-to 10 times).   =510   5(10)nswer: Option 5(10)
<result>A</result>
How many ways can 10 letters be posted in 5 post boxes, if each of the post boxes can take more than 10 letters?