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If you have black socks and brown socks in your drawer mixed in a ratio of 4 to 5, how many socks will you have to take out to make sure that you have a pair the same color?

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KeKe

  1. assuming you have full pairs, then the minimum number of socks is 8+10 = 18.

    So, you need to take out 9 socks to be sure there is at least one of each color.

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    Steve

  2. 6

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    kareem

  4. This is tricky question. The answer is 3 minimum pairs.
    First thing, The question does not insist upon the number of trails that you may make in order to get the same coloured pairs. It simply asks for the minimum number of socks required.
    The second thing, mixed in the ratio of 4 to 5 is redundant and is not required for getting to the answer.

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    Edwin

  5. Minimum number of socks is three (3).

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    Edwin

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