A person crosses a 300 m long street in 5 minutes. What is his speed in km per hour?
Choose the correct choice.
A) 5.2 km/hr. B) 8.2 km/hr. C) 7.2 km/hr. D) 3.6 km/hr. E) 4.2 km/hr.
D   3.6 km/hr.   Speed=(300/5 * 60) m/sec   = 1 m/sec.   Converting m/sec to km/hr   =(1*18/5) km/hr   = 3.6 km/hr.   Answer is 3.6 km/hr.
<result>D</result>
A person crosses a 300 m long street in 5 minutes. What is his speed in km per hour?