Two third of the members of a department are female. Twelve of the male faculty members are unmarried while 60% of them are married. The total number of faculty members in the department is:

A 90
B 60
C 30
D None of these

Correct Answer: 90

ধরি, total faculty member - এর সংখ্যা x জন ∴ female " " " '' 2x3 " ∴ male " " " " x3 " প্রশ্নমতে, x3 - x3×60% = 12 ⇒x3 - x5 = 12 ⇒2x15 = 12 ∴ x = 90
Bissoy MCQ

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