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Q.

A train, 200 m long, is running at a speed of 54 km/hr. The time in seconds that will be taken by train to cross a 175 m long bridge is

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a

12.5

b

25

c

10

d

20

answer is C.

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Detailed Solution

 Time = Distance  Speed 

 Time =200+17554×518 =37515 =25 sec

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