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Question
One third of the faculty members of a department are female. Sixteen of the male teachers are unmarried while 60% of them are married. The total number of faculty members in the department is_____
72
60
30
90
ANSWER : 2
Descrption
<p>মনে করি, </p> <p>মোট faculty members = x জন</p> <p>মহিলা faculty members x/3 জন</p> <p>পুরুষ faculty members x - x/3 = 2x/3 জন</p> <p>অবিবাহিত পুরুষের সংখ্যা = 2x/3 - 2x/5 জন</p> <p> = 10x - 6x / 15 জন = 4x/15 জন</p> <p>প্রশ্নমতে, </p> <p>4x/15 = 16</p> <p>x = 16 × 15 / 4 </p> <p>x = 60জন</p>
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