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    Question

    Average run scored by a batsman in first ‘x’ matches

    is 77. In next 12 matches he scored runs with an average of 90 so that his overall average increased by 6. Find the value of x.
    A 10 Correct Answer Incorrect Answer
    B 15 Correct Answer Incorrect Answer
    C 14 Correct Answer Incorrect Answer
    D 12 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    (77x + 12 × 90)/(x + 12) = 83  => 77x + 1080 = 83x + 996 => 6x = 84 => x = 14

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