697 persons shake hands with one another at a party. How many shake hands took place? O a. 242556 O b. 485809 O c. 485112 d. 697

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Q: 697 persons shake hands with one another at a party. How many shake hands took place? a. 242556 O b.…

A: Given x=597 Number of shake hand=X(X-1)/2

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Q: 697 persons shake hands with one another at a party. How many shake hands took place? O a. 242556 O…

A: GivenNo.of persons = 697

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