A person crosses a 500m long street in 5 minnutes. What is his speed in km per hour? Choose the correct option.
A) 6.01km/hr  B) 7.2km/hr  C) 9km/hr  D) 2.5km/hr  E) 3km/hr
Speed = 500/5*60 = 1.67m/sec   =1.67*18/5   =6.01km/hr   6.01km/hrnswer is 6.01km/hr
<result>A</result>
A person crosses a 500m long street in 5 minnutes. What is his speed in km per hour?