A bag contains 3 red, 5 black and 7 white balls. A ball is drawn from the
bag at random. The probability that the ball drawn is not black, is
(A) 1/3
(B) 9/15
(C) 5/10
(D) 2/3
Answers
Answered by
1
Answer:
2/3
Step-by-step explanation:
P(E)=favourable outcome /total no. of outcome
=10/15
=2/3
Answered by
2
Step-by-step explanation:
No. of red balls = 3
No. of black balls = 5
No. of white balls = 7
Total No. of balls = 3+5+7
= 15
No. of balls which are not black = 3+7 = 10
Probability of not drawing a black ball = 10 / 15
On simplifying, we get 2/3
Hence option D is correct
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