159.3333 mph (the digit 3 repeats indefinitely)
1,680/3 = 560 miles per hour
The average speed of the plane that travels 3060 miles in 5 hours is 612 Miles Per Hour.
1600 / 80 = 20 hours by train 1600 / 200 = 8 hours by plane it will take 20 - 8 = 12 hours more by train
Dividing distance by time gives 294 miles / 0.75 hours = 392 miles per hour.
The plane travels at 2,526.64 miles per hour.
1,872 miles per hour.
A submarine that travels 56 miles in 4 hours averages 16 miles per hour. (The 56 miles divided by 4 hours = 16 miles per hour.) To cover 700 miles at 16 miles per hour will take 700 miles divided by 16 miles per hour = 50 hours.
680 Miles :)
1) 500/15=33.33 minutes
100 miles / 4 hours = 25 miles per hour.
(80 miles)/(2 hours) = 40 miles/hour.
131.82 miles per hour.