New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    A box contains 4 red, 9 green, 5 yellow, and 2 white

    marbles. If a single marble is chosen at random from the box, what is the probability that it is green or white?
    A 9/20 Correct Answer Incorrect Answer
    B 7/20 Correct Answer Incorrect Answer
    C 11/20 Correct Answer Incorrect Answer
    D 13/20 Correct Answer Incorrect Answer

    Solution

    Total number of marbles = 4+9+5+2=20 Number of favorable outcomes (green or white marbles) = 9 (green) +2 (white) = 11 Probability=P (green or white) = 11/ 20 Answer: The probability that a single marble chosen at random from the box is green or white is 11 /20.

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