IIT JAM
Anku Asked a Question
May 21, 2021 7:55 pmpts 30 pts
  • IIT JAM
  • Mathematical Statistics (MS)

How underlined part is comming pls once tell

how underlined part is comming pls once tell. . . . . . . . . .. .
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  • Alka gupta Best Answer
    when two person sit together then we count both person 1 .....and both person can sit together as a 19 ways ....
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