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Q.

A bag contains 8 red and 6 black balls, two balls are taken out from the bag one after the other without replacement then what is the probability that 2nd ball is red if 1st ball was black?

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a

8/13

b

5/13

c

7/13

d

None of these

answer is A.

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Detailed Solution

If 1st ball is black then remaining in bag is 8 red and 5 black balls then probability of 2nd ball being red is 8/13.

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