A typical walking speed (not power-walking) for a healthy adult on a flat paved surface is about 3 miles an hour. So divide 711.5 by 3.
Of course, if some or all of the walk is uphill, over unpaved surfaces, through treacherous terrain, over mountains, across rivers, across crowded streets or highways, it could take much longer. And that is only the walking time. You will need to stop to rest, sleep, eat, replace worn out shoes, and take care of various bodily functions that will take up even more time. How many hours an individual can walk in a day also varies widely.
A fit and healthy person could do it in about 12 hours. Taking five minutes rest per hour
Time taken in hours = 41/200
13 hours 41 minutes.
0.8 hours or 48 minutes
4 hours 41 minutes.
8 hours 41 minutes.
60 MPH is one mile per minute. 41 minutes.
About 14 hours 41 minutes.
About three seconds.
11 hours, 41 minutes
26 minutes 20 seconds.
About 12 hours 41 minutes.
A little over half an hour.