Answer:
0.903 minutes / mile
Explanation:
For this question we can use the rationing method to solve.
Given information from the question:
93 miles = 1 hour 24 minutes
93 miles = 84 minutes
1 mile = 84 minutes ÷ 93 miles = 0.903 minutes / mile (rounded to 3 s.f)
On a side note: That is considered extremely fast.