From the statement I, we get length of the train is 200 metres (Redundant info while comparing with Statement III). The rest of the info given in this statement cannot be used for calculating the speed of the train, because the two trains might run at different speed.

III gives, speed =	200	m/sec = 20 m/sec =		20 x	18	km/hr = 72 km/hr.
	10				5

II gives, time taken =		558	hrs =	31	hrs = 7	3	hrs = 7 hrs 45 min.
		72		4		4

So, the train will reach city X at 3 p.m.

Hence II and III only gives the answer.