Answer: 60 min is 20% of 300 min.
Step-by-step explanation:
To find: 60 minutes is what percentage of 300 minutes.
The required percentage = [tex]\dfrac{60}{300}\times100\%[/tex]
The required percentage [tex]=\dfrac{1}{5}\times100\%\\\\[/tex]
The required percentage [tex]=20\%[/tex]
Therefore, the required result: 60 min is 20% of 300 min.