A bag contains 3 black, 4 white and 5 red balls. One ball is drawn at random. Find the probability getting a ball which is not red
Answers
Answered by
58
EXPLANATION.
A bag contains 3 black, 4 white, 5 red balls.
one ball is drawn at random.
Find the probability getting a ball
which is not red.
=> black balls = 3
=> white balls = 4
=> red balls = 5
Total number of balls =
=> black + white + red
=> 3 + 4 + 5 = 12
ball which is not red
=> Total balls - rad balls.
=> 12 - 5 = 7
=> probability of getting a ball which is
not red = 7/12
Answered by
17
Answer
7/12
Explanation
No. of black balls=3
No. of white balls=4
No. of red balls=5
Total no. of balls=3+4+5=12
Probability=(Probable outcome)/(Total outcome)
P(of getting red ball)=1-P(of not getting the red ball)
Therefore, 5/12 = 1 - P(of not getting red balls)
=P(of not getting red)= 12/12 - 5/12
=7/12
Therefore, probability of not getting the red ball is 7/12.
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