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30 August, 11:08

George has 20 pieces of candy in a bag: 2 mint sticks, 5 jelly treats, and 13 fruit tart chews. If he eats one piece every 8 minutes, what is the probability his first two pieces will both be mint sticks?

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  1. 30 August, 11:31
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    This is a counting principle probability question. There are 2 mints. The probability of the first one being a mint is

    2 / 20

    The probability of the second one being a mint is

    1 / 19

    The combined probability is 2/20 * 1/19 = 2 / 380 = 1/190

    The decimal equivalent is 0.00526
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