Answer: [tex]\dfrac{1}{3}[/tex] of a minute.
Step-by-step explanation:
Given : The time taken to play [tex]\dfrac{1}{5}[/tex] of a song = [tex]\dfrac{1}{15}[/tex] of a minute.
Then , The time taken to play an entire song will be : [tex]5\times\dfrac{1}{15}[/tex] of a minute.
i.e. The time taken to play an entire song will be : [tex]\dfrac{1}{3}[/tex] of a minute.
Hence, it will take [tex]\dfrac{1}{3}[/tex] of a minute to play the entire song.