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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
An urn contains 10 black and 5 white balls. Two balls are drawn from the urn one after the other without replacement.
What is the probability that both drawn balls are black?
What is the probability that both drawn balls are black?
Solution
Total balls $= 15$ Probability of drawing two black balls: $P = \dfrac{10}{15} \times \dfrac{9}{14} = \dfrac{90}{210} = \dfrac{3}{7}$Online Test Series, Information About Examination,
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