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Banking Sample Paper IBPS PO (PT) Sample Test Paper-2

  • question_answer
    There are 5 black and 3 pink balls in a basket. IF3 balls are drawn 'from the basket randomly then what is the probability that the three balls are either black or pink?

    A)  \[\frac{7}{55}\]                        

    B)  \[\frac{11}{56}\]

    C)  \[\frac{9}{56}\]                        

    D)  \[\frac{13}{56}\]

    E)  \[\frac{5}{52}\]

    Correct Answer: B

    Solution :

     Reqd probability\[=\frac{^{5}{{C}_{3}}{{+}^{5}}{{C}_{3}}}{^{8}{{C}_{3}}}=\frac{11}{56}\].


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