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19 October, 10:31

Sara has 20 sweets.

She has 12 liquorice sweets, 5 mint sweets and 3 humbugs

Sara is going to take two sweets at random

Work out the probability that the two sweets will not be the same type of sweet

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Answers (2)
  1. 19 October, 10:42
    0
    111/190

    Step-by-step explanation:

    this is the answer it worked on mathswatch
  2. 19 October, 10:55
    0
    Step-by-step explanation:

    Simple probability question.

    The probability that the 2 sweets will not be the same = 1 - probability of same 2 sweets.

    There are 3 possible outcomes where the two sweets will be the same. If she had 2 Liquorice or 2 mint or 2 humbug.

    P (2 Liquorice) = 12/20 * 11/19

    P (2 Mint) = 5/20 * 4/19

    P (2 Humbug) = 3/20 * 2/19

    All of those added together will give you the probability of her getting 2 of the same time of sweet.

    You the take that answer and subtract it from 1.
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