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A bag contains 10 black marbles and 6 red marbles. If a red

marble is drawn and not put back what is the probability of
selecting a black marble from the bag?

User Beny Lim
by
8.2k points

1 Answer

4 votes

Answer:

66.67% probability of selecting a black marble from the bag.

Explanation:

Initially there are 16 marbles, 10 of which are black and 6 of which are red.

A red marble is drawn and not put back. So now there are 15 marbles, of which 10 are black.

So there is a 10/15 = 2/3 = 0.666% 7 = 66.67% probability of selecting a black marble from the bag.

User Henhuy
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