Answer :
so 1/5 of a song isn 1/15 minute
5 times 1/5=1 song so
1/15 times 5=1 song legnth
1/15 times 5/1=5/15=1/3
it takes 1/3 minute
5 times 1/5=1 song so
1/15 times 5=1 song legnth
1/15 times 5/1=5/15=1/3
it takes 1/3 minute