A train 125 m long passes a man , running at 5 km/hr in the same direction in which the train is going in 10 seconds . The speed of the train is:

A 45 km /hr
B 50 km /hr
C 54 km /hr
D 55 km/hr

Correct Answer: 50 km /hr

Train এর speed Relative to mam = 12510m/sec = 252m/sec = 45 km/hr ধরা যাক, Train - এর speed x, তাহলে Relative speed = = x - 5km/hr∴x - 5 = 45⇒x = 50 km/hr
Bissoy MCQ
#গণিত #ট্রেন ও  গতিবেগ (Train & Speed) #Southeast Bank Ltd #Southeast Bank Ltd - Management Trainee Officer - 17.05.2013

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