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A bag contains 5 red, 8 black and 7 white balls. Is chosen at random. The probability that the chosen ball is black is:

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23

25

35

13

answer is B.

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Detailed Solution

Given a bag contains 5 red, 8 black and 7 white balls.
Number of black balls = 8
And, total number of outcome = 20
Now, the probability that the chosen ball is black is,

= Number of black balls Total number of outcomes = 820

= 25

The probability is

25

.
Hence, option 2 is correct.

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