depends on how many songs on an album.
You appear to have tried to calculate the result for an album of 5 songs.
But, your answer is too large. There are 14 songs in total.
If there are no duplicates, then once you have chosen the rock and country, there are 12 remaining songs, from which you want to pick 3.
So, there are 5*6*14C3 ways to pick them.
There are 5 rock songs, 6 country songs, and 3 hip-hop songs. How many different albums can be formed using the songs if the album should contain at least 1 rock song and 1 country song?
My solution: 14C5x14C6x14C3-5C1x6C1
Is this correct? Thanks in advance
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