A train 75 m long is running with a speed of 54 km per hour. In what time will it pass a telegraph post?	Options:
A) 11 s	B) 5 s	C) 7 s	D) 12 s	E) None of these
We know from the formula Time = Distance/ Speed   Thus, Time = 75/ 54 x 5/18   or, Time = 5 sec.   ANSWER:5 s
<result>B</result>
A train 75 m long is running with a speed of 54 km per hour. In what time will it pass a telegraph post?