Mathematics - Probability Question with Solution | TestHub

MathematicsProbabilityConditional probabilityMedium2 minPYQ_2011
MathematicsMediumsingle choice

Paragraph:Let and be two urns such that contains 3 white and 2 red balls and contains only 1 white ball. A fair coin is tossed. If head appears then 1 ball is drawn at random from and put into . However, if tail appears then 2 balls are drawn at random from and put into . Now, 1 ball is drawn at random from .Question:The probability of the drawn ball from being white is

Options:

Answer:
B
Solution:

Now, probability of the drawn ball from being white is

Stream:JEE_ADVSubject:MathematicsTopic:ProbabilitySubtopic:Conditional probability
2mℹ️ Source: PYQ_2011

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