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anonymous

  • one year ago

Tessa keeps seven cards with the picture of a king and three cards with the picture of a queen on a table face down, so the pictures are hidden. She mixes up the cards then turns over one card and finds the picture of a king on it. She removes this card from the table and turns over another card. What is the probability that the card Tessa turns over has a picture of a king on it? fraction 1 / 7 fraction 2 / 9 fraction 6/ 10 fraction 6 / 9

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  1. anonymous
    • one year ago
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    @Vocaloid @Plasmataco @jim_thompson5910

  2. Plasmataco
    • one year ago
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    6/9 because when u take it away, you have 9 total cards and 6 kings

  3. anonymous
    • one year ago
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    we know that there are 7 cards

  4. anonymous
    • one year ago
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    yes

  5. anonymous
    • one year ago
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    and there is 1 king card

  6. anonymous
    • one year ago
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    so the probability would be...(@amber_heart_ try to answer)

  7. anonymous
    • one year ago
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    @amber_heart_ What do you think it is?

  8. anonymous
    • one year ago
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    1/7

  9. anonymous
    • one year ago
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    @jim_thompson5910 @heretohelpalways @Plasmataco

  10. anonymous
    • one year ago
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    yup

  11. jim_thompson5910
    • one year ago
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    plasmataco had the right idea after throwing the king away on the first draw 7 -1 = 6 kings left 10-1 = 9 cards total probability of king on second draw = (# of kings left)/(# of cards total left) probability of king on second draw = 6/9 = 2/3

  12. anonymous
    • one year ago
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    oh, never mind,I read the question wrong, sorry

  13. anonymous
    • one year ago
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    but i am right about 1/7 right?

  14. anonymous
    • one year ago
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    oh ok lol

  15. Plasmataco
    • one year ago
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    No. There are 7 kings. 10 cards in total. When u take away a king, you have 6 kings and 9 cards. The odds of drawing another king is 6/9

  16. anonymous
    • one year ago
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    ^^^ hes right thanks! ^.^

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