A train is moving at a speed of 132 km/hr. If the length of the train is 100 meters, how long will it take to cross a railway platform 175 meters long
Choose the correct choice from the following answers.
A) 6 ½ sec	B) 7 ½ sec	C) 8 sec	D) 8 ½ sec	E) 9 sec
Explanation:   Speed of train = 132 ×(5/18) m/sec = 110/3 m/sec.   Distance covered in passing the platform = (100 + 175)= 
<gadget id="calculator">(100 + 175)</gadget>
<output>275</output>
275 m.   Time taken=275 ×(3/110) sec =15/2 sec = 7 ½ sec   Answer: Option 7 ½ sec
<result>B</result>
A train is moving at a speed of 132 km/hr. If the length of the train is 100 meters, how long will it take to cross a railway platform 175 meters long