BPSC 64th Prelims Exam 16 Dec 2018 Solved Paper

Question : 122 of 150

Marks: +1, -0

A train of length 150 meters, moving towards north direction at a speed of

144 {km} {/} {hr}

, can cross a 250 meters long bridge in

Solution:

Explanation: Total length to be covered by the train

=

length of train

+

length of bridge

=150+250=400 {m}

Speed of train in meter/second

=144 × \;{5}/{18}=40 {m} {/} {s}

Hence, Time taken to cross the bridge

=\;{400}/{40}=10

seconds

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