A train is moving at a speed of 132 km/hour. If the length of the train is 110 meters, how long will it take to cross a railway platform 165 meters long.	Choose the correct option
A) 7 second  B) 7.5 second  C) 8 second  D) 8.5 second  E) None of these
Explanation:   As we need to calculate answer in seconds, so first convert speed into meter/sec.   we know 1 km/hr = 1*(5/18) m/sec   So, Speed = 132* (5/18) = 110/3 m/sec   Distance need to be covered in passing the platform =   Length of train + length of platform = 110 + 165= 
<gadget id="calculator">110 + 165</gadget>
<output>275</output>
275 meters   Time= Distance/Speed   =&gt;Time=275∗3/110=15/2= 
<gadget id="calculator">15/2</gadget>
<output>15/2 = around 7.5</output>
7.5seconds   Option 7.5 second
<result>B</result>
A train is moving at a speed of 132 km/hour. If the length of the train is 110 meters, how long will it take to cross a railway platform 165 meters long.