Multiple Choice Questions on A 130 meters long train is running at a speed of 45 km hr It crossed a bridge in 30 seconds What is ........... for CDS Exam Preparation

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Multiple Choice Questions

A 130 meters long train is running at a speed of 45 km hr It crossed a bridge in 30 seconds What is ...........

Quantitative Aptitude (CDS) Problems on trains
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    A 130 meters long train is running at a speed of 45 km/hr. It crossed a bridge in 30 seconds.What is the length of the bridge? 

    215

    Correct Answer

    315

    Incorrect Answer

    415

    Incorrect Answer

    355

    Incorrect Answer
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    Explanation:

    Speed of train is 45km/hr
     =450/36
     =25/2 m/s
     Let the length of the bridge is d metre
     30=(d+130) /25/2
     750=2d+260
     d=215 m

    By: bhavesh kumar singh
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