2 answers:
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<h2>Answer with explanation:</h2>
He has 20 rock songs, 15 country songs, 10 world songs and 5 classical songs.
There are 50 in total.
- The fraction of songs which are rock songs are:
which in simplest fraction is given by:
and on multiplying the fraction with 100 we get the percent of songs.
Hence,
- The fraction of songs which are country songs are:
which in simplest fraction is given by:
Hence,
- The fraction of songs which are world songs are:
which in simplest fraction is given by:
Hence,
- The fraction of songs which are classical songs are:
which in simplest fraction is given by:
Hence,