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28 August, 02:58

A bag contains 3 red marbles, 5 green marbles and 7 blue marbles. If Janelle picks one marble out of the bag, what is the probability that the marble is red?

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  1. 28 August, 03:02
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    3+5+7 = 15 total marbles

    3 are red

    so she has a 3/15 reduces to 1/5 probability of picking a red one
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