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.
1hr 25mins
2.814 hours (rounded)
27 minutes.
http://www.wolframalpha.com/input/?i=200+miles+at+70mph
1 and half hours
1 hour 20 minutes.
2 hours 1 minute
7 hours 8 minutes.
at 70mph on the highway it'll take you right at 2hr