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    Question

    A is trying to break a bulb by throwing balls at it. If

    he hits the bulb 4 times in every 9 throws and bulb breaks 3 times out of 12 hits, then find the probability of A breaking the bulb.
    A 1/9 Correct Answer Incorrect Answer
    B 1/2 Correct Answer Incorrect Answer
    C 1/8 Correct Answer Incorrect Answer
    D 1/4 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Probability of A hitting the bulb = 4/9  Probability of the bulb being broke on getting hit = 3/12 = 1/4 Probability of A breaking the bulb = (4/9) × (1/4) = 1/9

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