An athlete runs 200 meters race in 18sec. His speed is?  Choose the correct choice from the following
A) 20km/hr  B) 15km/hr  C) 30km/hr  D) 25km/hr  E) 40km/hr
speed = 200/18 = 100/9 m/sec   = 100/9 * 18/5 km/hr = 40km/hr   Answer is 40km/hr
<result>E</result>
An athlete runs 200 meters race in 18sec. His speed is?