1 hour = 60 minutes.
So 16 miles in 82 minutes = 60*16/82 = 11.71 mph
Exactly 65,6 minutes.
1 hour 15 minutes.
60 mph = 60 miles over 60 minutes (assuming a constant speed over that time of 60 mph) Therefore 1 mile is travelled in 1 minute. So, to travel 82 miles at 60 mph would take 82 minutes.
1 hour 15 minutes at 65 mph
time = distance/speedtime = 281/82 = 3.43 hours = 3 hours and 25 minutes
It will take about 75 minutes of total driving time at a constant 65 mph. Add some time for stops and delays.
225/82 = 2 and 61/82 hours
That is a simple ratio problem. To travel 103 miles going 75 mph, it would be 103 miles/75 miles/hour, which is 1.37333... * 60 minutes which is 82.4 minutes or 82 minutes and 24 seconds precisely.
82 kph = 50.9 mph
82 MPH
Mach 82 is about 62,418.98 mph
1.26 hours