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    Question

    In a jar, there are (x + 8) red balls, ‘x’ blue

    balls, and (x + 2) black balls. If the probability of picking two blue balls at random is (1/45), then find the value of ‘x’.
    A 10 Correct Answer Incorrect Answer
    B 12 Correct Answer Incorrect Answer
    C 10 Correct Answer Incorrect Answer
    D 5 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    According to the question, Total number of balls in the jar = (x + 8 + x + x + 2) = (3x + 10) According to the question, Since the number of balls cannot be negative, Therefore, x = 5

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