Twenty-seven persons attended a party. Which one of the following statements can never be true ?
A. There is a person in the party who acquainted with all the twenty-six others.
B. Each person in the party who has a different number of acquaintances.
C. There is a person in the party who has an odd number of acquaintances.
D. In the party, there is on set of three mutual acquaintances.
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সঠিক উত্তরঃ
B.
Each person in the party who has a different number of acquaintances.
Explanation:
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