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JEE Main2004MathematicsPermutation and CombinationActual

The number of ways of distributing 8 identical balls in 3 distinct boxes so that none of the boxes is empty is

Options

  1. A5
  2. B^8 C₃
  3. C3^8
  4. D21

Correct answer

D. 21

Step-by-step solution

Number of balls =8 number of boxes =3 Hence number of ways = ^7 C₂=21 .

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