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QA – Placement Quizzes | Trains, Boats and Streams | Question 8

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  • 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 in the same direction as of train. How much time will it take to cross the car if the length of the train is 100 meters?
(B) 5 sec
(C) 4 sec
(D) 5.5 sec
(E) 4.5 sec

Answer: (E)

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

T = D/V = 0.100/80 = .00125 hrs

=> 00125*3600 = 4.5 secs

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