Solve this following


A box 'A' contains 2 white, 3 red and 2 black balls. Another box 'B' contains 4 white, 2 red and 3 black balls. If two balls are drawn at random, without replacement, from a randomly selected box and one ball turns out to be white while the other ball turns out to be red, then the probability that both balls are drawn from box 'B' is :

  1. $\frac{7}{16}$

  2. $\frac{7}{8}$

  3. $\frac{9}{16}$

  4. $\frac{9}{32}$

Correct Option: 1


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