Fundamentholfundamenthol
JEE Main2019Math
Q.

The number of ways of choosing 10 objects out of 31 objects of which 10 are identical and the remaining 21 are distinct, is : 

  1. A

    220 + 1

  2. B

    221

  3. C

    220 – 1

  4. D

    220

Solution

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