A train is 400 meter long is running at a speed of 60 km/hour. In what time will it pass a signal post?	Choose one:	A) 28 seconds	B) 30 seconds	C) 40 seconds	D) 24 seconds	E) 18 seconds
Speed = 60 Km/hr = 60*(5/18) m/sec = 150/9 m/sec   Total distance = 400 meter   Time = 24 secondsistance/speed   = 400 * (9/150)= 
<gadget id="calculator">400 * (9/150)</gadget>
<output>24</output>
24 seconds   Answer: 24 seconds
<result>D</result>
A train is 400 meter long is running at a speed of 60 km/hour. In what time will it pass a signal post?