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Probability question

2018 · 15 Apr · Shift 1 · Q36
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  5. /2018 · 15 Apr · Shift 1 · Q36

Probability question

2018 · 15 Apr · Shift 1 · Q36

JEE MainMathematicsProbabilityMCQ+4 / −1
A box 'A' contains 222 white, 333 red and 222 black balls. Another box 'B' contains 444 white, 222 red and 333 black balls. If two balls are drawn at random, without eplacement, 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. A
    916{9 \over {16}}169​
  2. B
    716{7 \over {16}}167​
  3. C
    932{9 \over {32}}329​
  4. D
    78{7 \over {8}}87​
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