A man crosses a 600 m long street in 5 minutes. What is his speed in km per hour?
Choose one
A) 7.2
B) 8.2
C) 3.5
D) 4.5
E) 6.5
speed = (600/5*60)sec   =2m/sec   =(2*18/5)= 
<gadget id="calculator">(2*18/5)</gadget>
<output>36/5 = around 7.2</output>
7.2km/hr   7.2NSWER 7.2
<result>A</result>
A man crosses a 600 m long street in 5 minutes. What is his speed in km per hour?