A train 110 m long is running with a speed of 80 km/hr. In what time will it pass a man who is running at 8 km/hr in the direction opposite to that in which the train is going?
Choose the correct option.
A) 5  B) 6  C) 4.5  D) 8  E) 9
Speed of train relative to man = 80 + 8= 
<gadget id="calculator">80 + 8</gadget>
<output>88</output>
88 km/hr.= 88 * 5/18 = 220/9 m/sec.   Time taken to pass the men = 110 * 9/220= 
<gadget id="calculator">110 * 9/220</gadget>
<output>9/2 = around 4.5</output>
4.5 sec.   Answer: Option 4.5
<result>C</result>
A train 110 m long is running with a speed of 80 km/hr. In what time will it pass a man who is running at 8 km/hr in the direction opposite to that in which the train is going?