ব্যাংক জব সল্যুশন১টি পরীক্ষায় এসেছেপ্রশ্ন ৬৭Twenty-seven persons attended a party. Which one of the following statements can never be true? কক) There is a person in the party who is acquainted with all the twenty-six others.খখ) Each person in the party has a different number of acquaintances.গগ) There is a person in the party who has an odd number of acquaintances.ঘঘ) In the party, there is no set of three mutual acquaintances.উত্তর দেখুন