A speed of 55 metres per second is the same as :	Pick one:	A) 150.4 km/hr	B) 155 km/hr	C) 198 km/hr	D) 168.5 km/hr	E) None
Sol.   55 m/sec = [55 * 18/5] km/hr = 198 km/hr.   Answer 198 km/hr
<result>C</result>
A speed of 55 metres per second is the same as :