An athlete runs 200 meters race in 48sec. His speed is? Pick
A) 20km/hr	B) 15km/hr	C) 30km/hr	D) 25km/hr	E) 40km/hr
speed = 200/48 = 25/6 m/sec   = 25/6 * 18/5 km/hr = 15km/hr   Answer is 15km/hr
<result>B</result>
An athlete runs 200 meters race in 48sec. His speed is?