Haryana Police Constable Model Paper 9

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Question : 54 of 100

Marks: +1, -0

How much time will be taken by a 225 metre long train, moving at a speed of 90

\km\/\hr

, to pass a man standing at a station ?

3 sec
9 sec
19 sec
29 sec

Solution:

Length of train

= 225 \m

Speed of the train

= 90 \km\/\h

\Speed(\s) = {\distance(\d)}/{\time(\t)}

\Time (\t) = {\distance(\d)}/{\speed(\s)}

Speed in

\m\/\s = 90 × (5/18) = 25 \m\/\s

∴required time

= 225/25 = 9 \sec

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