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    Question

    Average run scored by a batsman in first тАШxтАЩ matches

    is 20. In next 5 matches he scored runs with an average of 60 so that his overall average increased by 10. 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

    (20x + 5 ├Ч 60)/(x + 5) = 30 ┬а=> 20x + 300 = 30x + 150 => 10x = 150 => x = 15

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