A man is walking at a speed of 10 km per hour. After every kilometre, he takes rest for 5 minutes. How much time will be take to cover a distance of 5 kilometres?  Pick one
A) 48 min.  B) 50 min.  C) 45 min.  D) 55 min  E) None of these
explanation   Rest time = Number of rest × Time for each rest   = 4 × 5 = 20 minutes   Total time to cover 5km   = (5⁄10 × 60)minutes + 20 minutes = 50 minutes   Answer 50 min.
<result>B</result>
A man is walking at a speed of 10 km per hour. After every kilometre, he takes rest for 5 minutes. How much time will be take to cover a distance of 5 kilometres?