If a man crosses a 600 m long street in 5 minutes. What is his speed?  Choices
A) 7 km/hr B) 7.1 km/hr C) 7.2 km/hr D) 8 km/hr E) 9.2 km/hr
distance = 600 meter   time = 5 minutes = 5 x 60 seconds = 300 seconds   Speed = distancetime=600300=2m/s=2×185 km/hr=365 km/hr=7.2 km/hr   7.2 km/hr
<result>C</result>
If a man crosses a 600 m long street in 5 minutes. What is his speed?