Multiple Choice Questions on Two trains 274 metres and 326 meters in length are running towards each other on parallel lines one ........... for CDS Exam Preparation

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Multiple Choice Questions

Two trains 274 metres and 326 meters in length are running towards each other on parallel lines one ...........

Quantitative Aptitude (CDS) Problems on trains
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    Two trains 274 metres and 326 meters in length are running towards each other on parallel lines, one at the rate of 45kmph and 35 kmph. In what time will they be clear of each other from the moment they meet?

    25sec     
          

    Incorrect Answer

    30sec
          

    Incorrect Answer

    29sec
         

    Incorrect Answer

     27sec

    Correct Answer
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    Explanation:

    Relative speed of trains = (45+35)kmph = 80kmph
     
             = (80x5/18) = ( 200/9)  m/sec
      
       Time taken by the trains to pass each other:

      = Time taken to cover (274+326)m at 200/9 m/sec

       = [600/(200/9)] =27seconds.

    By: bhavesh kumar singh
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