Question

How many ways are there to give out 4 different candies to 4 students if each student has to get a candy?

Answer 1

The number of permutations of the 4 different candies taken 4 at a time gives the answer:
\[4P4=4!=4\times3\times2\times1\]

Answer 2

There are 4 choices of candy to give to the first student. Having given a candy to the first student, there are 3 choices of candy to give to the second student. Therefore there are 4 * 3 ways to give candies to the first 2 students. Continuing this reasoning gives the total number of ways as:
\[4\times3\times2\times1=you\ can\ calculate\]

Answer 3

Oh....thank you!

Answer 4

You're welcome :)