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31 October, 07:10

A box contains 15 yellow, 5 orange, and 15 green tennis balls. If Izzy draws a tennis ball at random out of the box what is the probability that she drew either a green or an orange tennis ball?

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  1. 31 October, 10:09
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    P (green or orange) = 4/7

    Step-by-step explanation:

    We need to know how many tennis balls there are

    total = 15 yellow + 5 orange + 15 green

    = 35 balls

    Probability of green or orange tennis ball is the sum of the green and orange tennis balls over the total balls

    P (green or orange) = (green + orange) / total

    = (15+5) / 35

    =20/35

    =4/7
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