A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at random. Find the probability that it is either black or red ball:

A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at

1.	A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at random. Find the probability that it is either black or red ball:
A.	2/3
B.	1/4
C.	5/12
D.	1/2
Answer» B. 1/4

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A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at random. Find the probability that it is either black or red ball:

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