There are 12 red pens, 20 blue pens and 5 black pens in a bag. What is the probability that you will pick a black pen? ( round your answer to three decimal places).

There is a 12.333 chance you will pick up a black pen. this is because 12 + 20 + 5 is 37.
since we are adding 3 numbers we are going to divide 37 by 3, resulting in 12.333 (12.3 repeating.) 12.333 is your answer, hope i helped!! :)

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