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Mathematics 16 Online
OpenStudy (anonymous):

Robert has 10 red folders, 6 blue folders, 15 green folders, and 9 black folders on his shelf. If he randomly grabs a folder, what is the probability that it will be either red or blue?

OpenStudy (anonymous):

16/40

OpenStudy (anonymous):

\[16/40\]

OpenStudy (anonymous):

Thank you

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