In what time will a railway train 120 m long moving at the rate of 70 kmph pass a telegraph post on its way?	Pick one:	A) 3 sec	B) 4 sec	C) 5 sec	D) 6 sec	E) 7 sec

Rationale: "t = 120 / 70 * 18 / 5 = 6 sec answer : d"
Answer: D