Question

    A container holds A orange balls

    and 8 brown balls. If two balls are picked randomly without replacement, and the probability of both being orange is 1/3, find the value of A.
    A 6 Correct Answer Incorrect Answer
    B 7 Correct Answer Incorrect Answer
    C 8 Correct Answer Incorrect Answer
    D 9 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Using the optional method:

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