Question

I use the formula and apparently I might be doing it wrong

Answer 1

Distance = 30 mi
Speed = 45 mi/h
We know that Distance = Speed x Time OR Time = Distance/Speed

Time to go to the site: T = 30/45 = 0.66667 Hour. Multiply by 60 to get it in minutes: 0.66667 x 60 = 39.9999 ≈ 40 minutes

To come back he also spent the same time or 40 minutes
 To and Fro = 80 minutes or 1 H 20 minutes