MCQ
Bag $B_{1}$ contains 6 white and 4 blue balls, Bag $B_{2}$ contains 4 white and 6 blue balls, and $\mathrm{Bag} \mathrm{B}_{3}$ contains 5 white and 5 blue balls. One of the bags is selected at random and a ball is drawn from it. If the ball is white, then the probability, that the ball is drawn from Bag $\mathrm{B}_{2}$, is :
  • A
    $\frac{1}{3}$
  • B
    $\frac{4}{15}$
  • C
    $\frac{2}{3}$
  • D
    $\frac{2}{5}$

Answer

B.
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