TS EAMCET · Maths · Probability
Bag A contains 4 white and 2 black balls, bag B contains 3 white and 3 black balls and bag C contains 2 white and 4 black balls. If a bag is chosen at random and a ball is chosen at random from it, then the probability that the ball drawn is black is
- A \(\frac{1}{3}\)
- B \(\frac{3}{4}\)
- C \(\frac{1}{2}\)
- D \(\frac{2}{3}\)
Answer & Solution
Correct Answer
(C) \(\frac{1}{2}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{P}[\) Ball is black \(]=\mathrm{P}\left[1^{\text {st }}\right.\) bag selected \(] \times\) \[ \mathrm{P}\left[\frac{\text { Ball is black }}{1^{\text {st }} \text { bag selected }}\right] \]…
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