for PE you walked a mile in 20 minutes
Time taken to travel for 1 mile = 20 minutes
To earn an A you need to decrease your time by 40%.
i.e 40% of 20 minutes
[tex]\begin{gathered} \text{ 40\% of 20 minutes = }\frac{40\times20}{100} \\ \text{ 40\% of 20 minutes =8 minutes} \end{gathered}[/tex]SInce, Time required to earn is decrease by the 40%
Time rquired to earn A = 20 minutes - 40% of time
Time required to earn A = 20 - 8
Time required to earn A = 12 minutes
Answer : 12 minutes
