Q. 24.7( 3 Votes )
A bag contains 5 red, 8 black and 7 white balls. Is chosen at random. What is the probability that the chosen ball is black?
A. 
B. 
C. 
D. 
Answer :
Total number of balls bag containing is: 5 red + 8 black + 7 white = 20 balls
Number of red balls = 8
Probability P() = 
Probability of getting a black ball P(black) = 
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