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QA – Placement Quizzes | Trains, Boats and Streams | Question 9

  • Last Updated : 28 Jun, 2021
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A train is running at a speed of 100Kmph. A car is running on road parallel to the train’s track at a speed of 20 Kmph opposite to train. How much time will it take to cross the car if the length of the train is 100 meters?
(A) 5 sec
(B) 4 sec
(C) 3 sec
(D) 3.5 sec

Answer: (C)

Explanation: Relative speed of train = 100+20 Kmph (say car is stopped)

T = D/V = 0.100/120 = .000833 hrs

=> 000833*3600 = 3 secs

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