A man in a train notices that he can count 41 telephone posts in one minute. If they are known to be
50 metres apart, then at what speed is the train travelling?	Pick one
A) 60 km/hr
B) 100 km/hr
C) 110 km/hr
D) 120 km/hr
E) None of these
Explanation:   Number of gaps between 41 poles = 40   So total distance between 41 poles = 40*50= 
<gadget id="calculator">40*50</gadget>
<output>2_000</output>
2000 meter= 2 km   In 1 minute train is moving 2 km/minute.   Speed in hour = 2*60= 
<gadget id="calculator">2*60</gadget>
<output>120</output>
120 km/hour   Answer: 120 km/hr
<result>D</result>
A man in a train notices that he can count 41 telephone posts in one minute. If they are known to be
50 metres apart, then at what speed is the train travelling?