Question

A man rides a horse at the rate of 11 miles an hour, but stops for 5 min to change horse at the end of every seventh mile. How long will he take to cover a distance of 96 miles ? (Approx.) 

(a) 7 hr. 20 min. (b) 6 hr. 25 min. (c) 8 hr. 42 min. (d) 9 hr. 48 min. (e) None of these

Answer 1

Time taken to travel 96 miles

=96/11 hrs. = 8 hrs and 43 minutes

During the journey of 96 miles, he has to stop for 13 times to change the horse.
Total stoppage time
= 13 × 5 = 65 mins. = 1 hr and 5 mins.
Hence the total time
= 8 hrs and 43 mins + 1 hr and 5 mins.
= 9 hrs and 48 mins.