When a meeting of a committee was over every member shook hands with one another & the total number of handshakes was 10. How many members were there meeting?

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Permutation and Combination

প্রশ্নঃ When a meeting of a committee was over every member shook hands with one another & the total number of handshakes was 10. How many members were there meeting?

  • ক. 4
  • খ. 5
  • গ. 6
  • ঘ. 2

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Permutation and Combination