Talk:Permutations and combinations/@comment-188.129.93.24-20150626192216

Are there other ways to calculate how many ways are there to arrange reindeers if 2 of them are together? I don't completely understand the problem. I was explaining it to myself by fitting fitting n reindeers into k slots. And since the number of ways is the same for fitting the number of slots into number of reindeers this worked out just fine. I realised that this is not precise enough method but I explained it to myself by thinking about it using the original question: How many ways are there to fit 2 reindeers into 5 slots divided by number of ways you can arrange n reindeers. But then it proved to be an incorrect method as soon as I reached more than 4 reindeers.