1 hour and 17 min.
At 60 mph, it takes x minutes to drive x miles. So 188 miles takes 188 minutes = 3 hours and 8 minutes.
(6 miles / 4 minutes) x (60 minutes / hour) = 90 mph
1.7 miles in 20 minutes equates to 5.1 mph
Three mph
3.7 miles in five minutes requires a pace of 44.4 mph
246 minutes at 60 mph
16 minutes at 60 mph
56 minutes at 60 mph
75 mph at that rate.
16.8 mph at that rate.
0.2858
At what speed? 20 MPH, 498 minutes 60 MPH, 166 minutes 75 MPH, 132.8 minutes