A train 120 m long is running with a speed of 54 km per hour. In what time will it pass a telegraph post?
Choose the correct choice from the following answers.
A) 11 s
B) 10 s
C) 8 s
D) 12 s
E) None of these
We know from the formula Time = Distance/ Speed   Thus, Time = 120/ 54 x 5/18   or, Time = 8 sec.   ANSWER:8 s
<result>C</result>
A train 120 m long is running with a speed of 54 km per hour. In what time will it pass a telegraph post?