Multiple Choice Questions on In an examination 30 of the total students failed in Hindi 45 failed in English and 20 failed in bot........... for Mathematics - All Exams Preparation

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Multiple Choice Questions

In an examination 30 of the total students failed in Hindi 45 failed in English and 20 failed in bot...........

Quant (SSC) Percentage
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    In an examination, 30% of the total students failed in Hindi, 45% failed in English and 20% failed in both the subjects. Find the percentage of those who passed in both subjects.

    35.7%

    Incorrect Answer
    35%
    Incorrect Answer

    40%

    Incorrect Answer

    45%

    Correct Answer
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    Explanation:

    Given,

    In first subject failed students = x = 30%, In second subject failed students = y = 45%
    In both subject failed students = z = 20%
    By the short trick approach, we get
    100 – (x + y – z) = 100 – (30 + 45 – 20)
    = 100 – (55)
    = 45%.

    By: Amit Kumar
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