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Mathematics 16 Online
OpenStudy (anonymous):

Which of these sets consists entirely of composite numbers? Select one of the options below as your answer: A. 2, 4, 6, 8, 10 B. 6, 12, 18, 24, 30 C. 5, 10, 15, 20, 25 D. 3, 6, 9, 12, 15

OpenStudy (anonymous):

Are you just posting homework/questions? If so, that is against the code of conduct on OS.

OpenStudy (anonymous):

they are not homework questions, sir.

OpenStudy (anonymous):

Okey! :) What are your initial thoughts?

OpenStudy (anonymous):

just look for the set, which does not have any prime.. option B

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