A train running at the speed of 54 km/hr crosses a pole in 7 seconds. Find the length of the train. Choose the correct choice from the following choices.
A) 150 meter	B) 105 meter	C) 140 meter	D) 135 meter	E) None of these
Explanation:   Speed = 54*(5/18) m/sec = 15 m/sec   Length of Train(Distance) = Speed * Time   =15*7= 
<gadget id="calculator">15*7</gadget>
<output>105</output>
105 meter   Option 105 meter
<result>B</result>
A train running at the speed of 54 km/hr crosses a pole in 7 seconds. Find the length of the train.