Multiple Choice Questions on If sum of green and white balls is 16 then what is the probability of drawing 2 balls of same colour........... for SBI(PO) Exam Preparation

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Multiple Choice Questions

If sum of green and white balls is 16 then what is the probability of drawing 2 balls of same colour...........

Quantitative Aptitude (SBI-PO) Probability
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    Direction () : Study the following information carefully and answer the given questions.
    There were some red, some green and some white balls in a bag. Probability of drawing 1 white ball from the bag is 1/3 . If there were 6 more red balls in the bag, the probability of getting 1 green ball would have been1/30  less

    If sum of green and white balls is 16, then what is the probability of drawing 2 balls of same colour?

    151/870

    Incorrect Answer

    151/435

    Correct Answer

    31/145

    Incorrect Answer

    141/435

    Incorrect Answer

    None of these

    Incorrect Answer
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    Explanation:

    Let the number of white balls = w, the number of green balls = g and the number of red balls = r, then g + w = 16
    Given = w/(w+g+r)=1/3
    w/(16+r)=1/3

    By: Munesh Kumari
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