Subject
Quantitative Aptitude
Topic
Probability
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 random. Find the probability that it is either black or red ball:
ক)
2/3খ)
1/4গ)
5/12ঘ)
1/2Explanation
P(black ball)=3/12 P(red ball)=5/12 P(black or red)=3/12+5/12=2/3Related questions
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