A train 284 m in length crosses a telegraph post in 18 seconds. The speed of the train is?	Choose one:  A) 77 kmph  B) 55 kmph  C) 57 kmph  D) 58 kmph  E) 76 kmph
S = 284/18 * 18/5   = 57 kmph   Answer: 57 kmph
<result>C</result>
A train 284 m in length crosses a telegraph post in 18 seconds. The speed of the train is?