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math

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A drawer contains 2 brown and 3 gray socks. THe socks are taken out of the drawer one at a time. WHat is the probability that the fourth sock removed is gray? Express your answer as a common fraction.

Can anyone explain this to me? Thanks!!

  • math - ,

    3/5

  • math - ,

    there are 10 ways to arrange the 5 socks
    5!/2!3!) = 10

    lets list them in an organized way:
    BBGGG
    BGBGG
    BGGBG
    BGGGB

    GBBGG
    GBGBG
    GBGGB

    GGBBG
    GGBGB
    GGGBB
    Looks like the G is in the 4th spot 6 times
    so the prob is 6/10 = 3/5

  • Algebra - ,

    A printer can print 10 pages of text per minute or 4 pages of graphics per minute. How many minutes will it take to print 31 pages of text and 7 pages of graphics? Express as a mixed numer.

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