A train 600 meters long is running with a speed of 50 kmph. The time taken by it to cross a tunnel 170 meters long is?
Choose the correct choice from the following options:	A) 287 sec	B) 288 sec	C) 55 sec	D) 16 sec	E) 17 sec
D = 600 + 170= 
<gadget id="calculator">600 + 170</gadget>
<output>770</output>
770   S= 50 * 5/18 = 14 mps   T = 770/14= 
<gadget id="calculator">770/14</gadget>
<output>55</output>
55 sec   Answer: 55 sec
<result>C</result>
A train 600 meters long is running with a speed of 50 kmph. The time taken by it to cross a tunnel 170 meters long is?