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An urn contains 9 red, 7 white and 4 bla...

An urn contains 9 red, 7 white and 4 black balls. A ball is drawn at random. What is the probabiity that the ball drawn is:
(i) red (ii) white (iii) red or black
(iv) white or black (v) not red?

A

`1/11`

B

`9/20`

C

`2/11`

D

`11/20`

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Verified by Experts

The correct Answer is:
D
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