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JEE Main 2015

JEE Main 2015 Mathematics question on Probability

If 12 identical balls are to be placed in 3 different boxes, then the probability that one of the boxes contains exactly 3 balls, is
  1. A.
    553(23)11\frac{55}{3} \left(\frac{2}{3}\right)^{11}
  2. B.
    55 (23)10\left(\frac{2}{3}\right)^{10}
  3. C.
    220 (13)12\left(\frac{1}{3}\right)^{12}
  4. D.
    22 (13)11\left(\frac{1}{3}\right)^{11}
Show answer

Correct option: A

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