A train 360 metre long runs with a speed of 45 km/hr. What time will it take to pass a platform of 140 metre long?  Pick one: A) 30 B) 35 C) 40 D) 45 E) 50
Speed =45 km/hr=45×5/18=25/2 m/s Distance travelled = (Speed x Time)   Time = (Distance travelled / Speed)   Distance travelled = Length of the train + Length of the platform   =360+140= 
<gadget id="calculator">360+140</gadget>
<output>500</output>
500 m= 500/ 25/2 = 40 sec   Answer: 40
<result>C</result>
A train 360 metre long runs with a speed of 45 km/hr. What time will it take to pass a platform of 140 metre long?