Two n digit integers (leading zeros allowed) are considered equivalent if one is a rearrangement of the other. (For example, 12033, 20331, and 01332 are considered equivalent five-digit integers.)
(a) How many five-digit integers are not equivalent?
(b) If the digits 1, 3, and 7 can appear at most once, how many nonequivalent five-digit integers are there?
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.