A speed of 24 metres per second is the same as :
Choose the correct option
A) 60.4 km/hr	B) 86.4 km/hr	C) 65 km/hr	D) 68.5 km/hr	E) None
Sol.   24 m/sec = [24 * 18/5] km/hr = 86.4 km/hr.   Answer 86.4 km/hr
<result>B</result>
A speed of 24 metres per second is the same as :