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    Question

    A jar contains 54 marbles each of which is blue green or

    white. The probability of selecting a blue marble at random from the jar is 1/3 and the probability of selecting a green marble at random is 4/9. How many white marbles does the jar contain.
    A 26 Correct Answer Incorrect Answer
    B 14 Correct Answer Incorrect Answer
    C 12 Correct Answer Incorrect Answer
    D 29 Correct Answer Incorrect Answer

    Solution

    The probability of selecting a blue marble – 1/3 =Blue/54 Blue= 18 Now the probability of selecting a green marble – 4/9 =Green /54 Green = 24 Total number of white balls =54-(18+24) =12

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