Two trains of equal are running on parallel lines in the same direction at 48 km/hr and 36 km/hr. The faster train passes the slower train in 36 sec. The length of each train is?
Pick one:	A) 60 m	B) 72 m	C) 80 m	D) 82 m	E) 84 m
Let the length of each train be x m.   Then, distance covered = 2x m.   Relative speed = 48 - 36= 
<gadget id="calculator">48 - 36</gadget>
<output>12</output>
12 km/hr.= 12 * 5/18 = 10/3 m/sec.   2x/36 = 10/3=&gt; x = 60.   60 mNSWER:60 m
<result>A</result>
Two trains of equal are running on parallel lines in the same direction at 48 km/hr and 36 km/hr. The faster train passes the slower train in 36 sec. The length of each train is?