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    Question

    Average run scored by a batsman in first β€˜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 Γ— 90)/(x + 12) = 83 Β => 77x + 1080 = 83x + 996 => 6x = 84 => x = 14

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