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NEET Sample Paper NEET Sample Test Paper-82

  • question_answer
    If two trains of 122 m and 98 m in length are running in opposite directions with velocities 40 km/h and 32 km/h. The time after which they will cross each other is

    A)  11 s                            

    B)  10 s

    C)  7 s                              

    D)  None of these

    Correct Answer: A

    Solution :

    Relative speed of train \[= 40 + 32 = 72 km /h=20m/s\] Now, total distance travelled by train in crossing each other \[= 122 + 98 = 220 m\] \[\therefore \] Time taken to cross each other \[=\,\,\frac{220}{20}=11\,s\]


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