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A jar contains 200 marbles total. Some are black. If you pull 4 marbles out and 1 is black, how many out of the 200 marbles would you guess are black?
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A jar contains 200 marbles total. Some are black. If you pull 4 marbles out and 1 is black, how many out of the 200 marbles would you guess are black?

User Ryan Horrisberger
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Out of 200 marbles, there are 40 black marbles
User Seybsen
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