50km/60 min is 0.83 km in each minute, so divide to get minutes from km/min --
20 km/0.83km/min = 24 minutes
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30 minutes
The number of hours it will take to travel 308 miles is(308)/(your average speed, in miles per hour)
6,290 something 6.29X108km/(105km/hr)=6.29X103hr
one hour nine minutes and 4 secounds
12 hours.