SOLUTION: If there are 9 songs, five slow and four fast but each song must be played once with a slow song beginning and a slow song ending, how many combinations can you come up with?
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Question 392053: If there are 9 songs, five slow and four fast but each song must be played once with a slow song beginning and a slow song ending, how many combinations can you come up with? Answer by sudhanshu_kmr(1152) (Show Source):
You can put this solution on YOUR website!
no. of ways to arrange two slow songs for first and last = 5P2
now, we can arrange remaining 7 songs in any order
so, no. of ways to arrange 7 songs = 7!
