How long will it take a train travelling at 68kmph to pass an electric pole if the train is 170 m long  Choose the correct choice:	A) 6.99	B) 5.99	C) 8.99	D) 4.99	E) 9.99

Rationale: "sol . speed = [ 68 x 5 / 18 ] m / sec = 18.9 m / sec . time taken = ( 170 / 18.9 ) sec = 8.99 sec . answer c"
Answer: C