To calculate the time it takes to drive 20 miles at 70 mph, you can use the formula: time = distance ÷ speed. So, time = 20 miles ÷ 70 mph, which equals approximately 0.286 hours. Converting this to minutes, it takes about 17.14 minutes to drive that distance at that speed.
One hour
4.57 hours
11 hours 30 minutes.
2.814 hours (rounded)
1hr 25mins
27 minutes.
http://www.wolframalpha.com/input/?i=200+miles+at+70mph
1 and half hours
2 hours 1 minute
1 hour 20 minutes.
at 70mph on the highway it'll take you right at 2hr
21 hours, 25 minutes, 42.86 seconds