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5th Class Mental Ability Arithmetical Reasoning Question Bank Arithmetical Reasoning

  • question_answer
    A man wears socks of two colours- white and grey. He has altogether 20 white socks and 20 grey socks in a drawer. Supposing he has to take out the socks in the dark, how many must he take out to be sure that he has a matching pair?

    A)  39                              

    B)  20

    C)  3                                

    D)  None of these

    Correct Answer: C

    Solution :

     There are socks of only two colours, so two out of any three socks must always be of the same colour.


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