Subject

    Quantitative Aptitude

    Topic

    Probability

    In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

    ক)
    2/7
    খ)
    5/7
    গ)
    1/5
    ঘ)
    1/2

    Explanation

    Total number of outcomes possible, n(S) = 10 + 25 = 35 Total number of prizes, n(E) = 10 P(E)=n(E)n(S)=1035=27P(E)=\frac{n(E)}{n(S)}=\frac{10}{35}=\frac27

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