JEE Mains · Maths · STD 12 - 13. probability
Bag \(A\) contains \(3\) white, \(7\) red balls and bag \(B\) contains \(3\) white, \(2\) red balls. One bag is selected at random and a ball is drawn from it. The probability of drawing the ball from the bag \(\mathrm{A}\), if the ball drawn in white, is :
- A \(\frac{1}{4}\)
- B \(\frac{1}{9}\)
- C \(\frac{1}{3}\)
- D \(\frac{3}{10}\)
Answer & Solution
Correct Answer
(C) \(\frac{1}{3}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{E}_1: \mathrm{A}\) is selected \({E}_2: \mathrm{B}\) is selected \({E}:\) white ball is drawn \(P\left(E_1 / E\right)=\)…
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