Everyone is physically different but *generally* speaking a professional cyclist can do it in about one and half hours a a flat course.
A typical weekend fitness person in good shape should be able to accomplish it in 2.5-3 hrs.
if average speed of 15mph then four hours. I'd say 15mph is a good beginner/average speed but 60 miles is a little far for an average beginner. But try it out. Pick the day on the calendar you want to ride 60 miles and back off a few weeks and aim for 75% that distance in once a week long rides. Check it out here.
It would depend entirely on riding speed, which would be dependent on a whole range of things. Bike type, riding surface, fitness, level of exertion and more. A decent road rider on the flat would be able to do it in 2 hours, an elite track rider could pull it off in a little less. Most regular riders would do it in somewhat more than two hours, assuming a reasonably flat road.
Depends on which speed you're able to keep. A fit rider on good, flattish roads could make it in 90 minutes. An average rider on decent roads could do it in one three hours. Poor rider, poor conditions, it can take forever.
Depends on a lot of things. A fit rider can do 20 MPH for several hours under reasonably easy riding conditions, so with a few pit stops you'd might be able to pull it off in just above three hours.
Or you may need the double, if you're not as fit, if your bike is poor or if riding conditions are poor.
it obviously depends how fast you can ride a bike and how long you can go without stopping
Since a stationary bike doesn't move, there's no way it can travel 20 miles. Now, if you're asking how long it would take to ride twenty miles on a bicycle, it depends on speed, wind, and other factors. Typically a bike maximum speed is about 20 miles per hour. So it would take about an hour to ride 20 miles on a REGULAR moving bicycle.
if your speed is 4 miles per hour it takes an hour,at 8mph it takes 30 minutes.
I presume you mean how long will it take for a 12 miles bike ride. It depends on how fast you can bike, if it's uphill or downhill. The average is between 8-13 mph for most people to bike on a 10-speed on the whole. By that measurement, it could take 50-90 minutes or so on the average.
26 divided by 8 equals 3.25 hours or 3 hours and 15 minutes
A: 9 hours.
It cannot be done. To ride a bike around the earth, the continents would need to be connected, or the bike would need a really long bridge across the ocean.
Three hours (30/10 = 3).
20/12 = 5/3 hour = 12/3 hours = 1hour 40minutes
Lassen uns rad fahren = let us take a bike ride.