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What is the probability that the fourth hat that he takes out at random will also be black?

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There are 20 white hats and 13 black hats in a box.
Neeraj randomly took 3 hats ( in succession) out of the box and did not put them in the box.
All three hats were black.
What is the probability that the fourth hat that he takes out at random will also be black?

posted Apr 12, 2021 by Anamika

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