A train 520 meters long is running with a speed of 34 kmph. The time taken by it to cross a tunnel 280 meters long is?
Choose the correct choice:
A) 287 sec B) 89 sec C) 48 sec D) 16 sec E) 17 sec
D = 580 + 280 = 800   S = 34 * 5/18 = 9 mps   T = 800/9 = 89 sec   Answer: 89 sec
<result>B</result>
A train 520 meters long is running with a speed of 34 kmph. The time taken by it to cross a tunnel 280 meters long is?