Multiple Choice Questions on A bag contains 5 red balls and 8 blue balls It also contains 4 green and 7 black balls If a ball is ........... for NDA Exam Preparation

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Multiple Choice Questions

A bag contains 5 red balls and 8 blue balls It also contains 4 green and 7 black balls If a ball is ...........

Mathematics (NDA) Probability
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    A bag contains 5 red balls and 8 blue balls. It also contains 4 green and 7 black balls. If a ball is drawn at random, then find the probability that it is not green?

    5/7

    Incorrect Answer

    5/6

    Correct Answer

    9/10

    Incorrect Answer

    1/12

    Incorrect Answer
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    Explanation:

    The probability that the ball is drawn is of green colour =4/24

    =1/6

    The probability that the ball is drawn is not of green colour =1-1/6

    =5/6

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