A man takes 7 hours 30 minutes to walk to a certain place and ride back on a horse. He would save 3 hours 10 minutes by riding both ways. How much time would he take to walk both ways?
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → 10 hours 40 minutes
The trip is made of two equal legs, so the time for one leg each way can be found and then doubled.
Walk one way + ride one way \(=7\) hr 30 min
Ride both ways \(=7\) hr 30 min \(-\) 3 hr 10 min \(=4\) hr 20 min
Ride one way \(=4\) hr 20 min \(\div2=2\) hr 10 min
Walk one way \(=7\) hr 30 min \(-\) 2 hr 10 min \(=5\) hr 20 min
Walk both ways \(=2\times5\) hr 20 min \(=10\) hr 40 min