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A jar contains $9$ red marbles numbered $1$ to $9$ and $7$ blue marbles numbered $1$ to $7$. A marble is drawn at random from the jar. Find the probability that the marble is blue or even-numbered.

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closed as off-topic by heropup, user91500, астон вілла олоф мэллбэрг, Adriano, Behrouz Maleki Dec 18 '16 at 17:22

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How many marbles fit the criterion? Now divide by the number of possibilities.

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  • $\begingroup$ What? I'm confused and sleepy $\endgroup$ – onlyZoe Oct 2 '16 at 10:33
  • $\begingroup$ @MeganCiao Try reading it again later. $\endgroup$ – Carl Schildkraut Oct 2 '16 at 17:16

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