Two trains are running in opposite directions with the same speed. If the length of each train is 120 m and they cross each other in 8 sec, then the speed of each train is?	Choices:
A) 54  B) 77  C) 36  D) 88  E) 21
Let the speed of each train be x m/sec.   Then, relative speed of the two trains = 2x m/sec.   So, 2x = (120 + 120)/8 =&gt; x = 15   Speed of each train = 15 m/sec.   = 15 * 18/5 =- 54 km/hr.54nswer: 54
<result>A</result>
Two trains are running in opposite directions with the same speed. If the length of each train is 120 m and they cross each other in 8 sec, then the speed of each train is?