Multiple Choice Questions on What is the length of the train travelling at uniform speed Statement I The train crossed another tr........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

What is the length of the train travelling at uniform speed Statement I The train crossed another tr...........

Quantitative Aptitude ( CCS) Data Sufficiency
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    What is the length of the train travelling at uniform speed?

    Statement I: The train crossed another train of length 300 m moving in opposite direction in 24 seconds.

    Statement II: The train crossed a bridge of length 650 m in 35 seconds.

    If the data in statement I alone is sufficient to answer the question.

    Incorrect Answer

    If the data in statement II alone is sufficient to answer the question.

    Incorrect Answer

    If the data either in statement I alone or statement II alone are sufficient to answer the question.

    Incorrect Answer

    If the data given in both I and II together are not sufficient to answer the question.

    Correct Answer

    If the data in both the statements I and II together are necessary to answer the question.

    Incorrect Answer
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    Explanation:

    Let length of train = x m.
    Let speed of train = y m/s
    From statement I, let speed of another train = z m/s
    So (x+300)/24 = y+z
    From statement II, (x+650)/35 = y
    So from both statements also we have 3 variables and 2 equations.

    Hence, option 4 is the correct answer.

    By: Amit Kumar
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