Two trains 140 meters and 160 meters long are running in the same direction with speeds of 92 km/hr, 56km/hr. In how much time will the first train cross the second  Choose the correct choice from the following choices: A) 37 sec B) 25 sec C) 30 sec D) 28 sec E) 32 sec
Explanation:   Relative speed of the trains = (92 - 56) km/hr = 36 km/hr   = (36Ã— 5/18) m/sec = 10 m/sec.   Time taken by the trains to cross each other   = Time taken to cover (140 + 160) m at 10 m /sec = (300/10)= 
<gadget id="calculator">(300/10)</gadget>
<output>30</output>
30 sec.   Answer: Option 30 sec
<result>C</result>
Two trains 140 meters and 160 meters long are running in the same direction with speeds of 92 km/hr, 56km/hr. In how much time will the first train cross the second