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  1. Maths Challenge

     

    2. A.

    19
    B.

    38
    C.

     22
    D.

    40

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    Answer : Option D

    Explanation :

    To get a pair of black rings 100 percent certain

    27 blue + 17 red + 2 black = 40 rings should be taken out

    Then only we can get 100 % a pair of black rings. 

     

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