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Question
The membership of two committees , football committee and cricket committee , must be drawn exclusively form a group of seven people . Farid, Gaffar , Helal , Iftekhar , Jalil , Kalam and Lalit. * Each of the seven people must serve on a committee. * No one can serve on both committees. * Farid cannot be on a committee with Gaffar or with Jalil. * Helal cannot serve on a committee with Iftekhar. If Helal serves on football committee, which of the following must be true?
Farid serves on football committee
Gaffar serves on cricket committee
Iftekhar serves on cricket committee
Kalam serves on football committee
ANSWER : 2
Descrption
বলা হয়েছে Helal যদি football committee তে থাকে, তবে answer option - এর কোনটি অবশ্যই সত্য হবে? প্রথমে চলুন ‘Helal’ সংক্রান্ত condition দেখা যাক। চতুর্থ condition অনুযায়ী Helal থাকবে না। Iftekhar - এর সাথে। তাই এই শর্তানুযায়ী answer option (B) must be true । কারণ Helal যদি football committee serve করে তাহলে iftekhar অবশ্যই cricket committee serve করবে।
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