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$\frac{2}{5}$
