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    Question

    12 defective chargers got mixed with 108 pieces of

    non-defective chargers. A customer comes and buys one charger. Find the probability that the charger bought by the customer is a defective one.
    A 1/10 Correct Answer Incorrect Answer
    B 1/9 Correct Answer Incorrect Answer
    C 2/11 Correct Answer Incorrect Answer
    D 3/25 Correct Answer Incorrect Answer

    Solution

    Number of defective chargers = 12
    Total number of chargers = 108 + 12 = 120
    Required probability = (12/120) = (1/10)

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