A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is:	Choose the correct choice from the following:
A) 48 km/hr
B) 54 km/hr
C) 66 km/hr
D) 82 km/hr
E) 85 km/hr
Explanation:   Let the speed of the second train be x km/hr.   Relative speed	= (x + 50) km/hr   =(x + 50) x 5/18 m/sec   =250 + 5x	/18 m/sec   Distance covered = (108 + 112)= 
<gadget id="calculator">(108 + 112)</gadget>
<output>220</output>
220 m.   220/ [(250+5x)	/18]=6   250 + 5x = 660   x = 82 km/hr.   ANSWER IS 82 km/hr
<result>D</result>
A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is: