A man walks to a viewpoint and returns to the starting point by his car maintaining constant speed and thus takes a total time of 8 hours 45 minutes. He would have gained 5 hours by driving both ways. How long would it have taken for him to walk both ways with same walking speed?
1
13 hours 45 minutes
2
13 hours 30 minutes
3
12 hours 45 minutes
4
14 hours 15 minutes