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    Question

    Study the given graph and answer the question that

    follows.   The number of patients aged 10 or more years but below 40 years is what per cent less than the number of patients aged 50 or more years but below 80 years?
    A 30.2 Correct Answer Incorrect Answer
    B 25 Correct Answer Incorrect Answer
    C 34 Correct Answer Incorrect Answer
    D 27.5 Correct Answer Incorrect Answer

    Solution

    Calculation: Age of person between 10 to 40 years = 14 + 20 + 24 ⇒ Age b/w 10 - 40 = 58 Age of person between 50 to 80 years = 32 + 26 + 22 ⇒ Age b/w 50 - 80 = 80 Required Percentage = (Age b/w 50 - 80 – Age b/w 10 - 40)/Age b/w 50 - 80 × 100 ⇒ Required percentage = (80 – 58)/80 × 100 ⇒ Required percentage = 22/80 × 100 ⇒ Required percentage = 27.5% ∴ The required percentage is 27.5%.

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