Subject
Bank Exam
Topic
সমন্বিত ৭ ব্যাংক অফিসার (ক্যাশ) - ০২.০৬.২০২৩
Of 30 applicants for a job, 14 had at least 4 years experience, 18 had degrees, and 3 had less than 4 years experience and did not have a degree. How many of the applicants had at least 4 year's experience and a degree?
Of 30 applicants for a job, 14 had at least 4 years experience, 18 had degrees, and 3 had less than 4 years experience and did not have a degree. How many of the applicants had at least 4 year's experience and a degree?
ক)
13খ)
9গ)
7ঘ)
5Explanation
Given: Total applicants (n) = 30 Applicants with at least 4 years' experience (A) = 14 Applicants with degrees (B) = 18 Applicants with less than 4 years' experience and no degree = 3 The applicants had at least 4 year's experience and a degree n(A ∩ B ) = ? Now A ∩ B = A + B - (A ∪ B) A ∪ B = A + B - (A ∩ B) = 14 + 18 - (30 - 3) = 14 + 18 - 27 = 32 - 27 = 5 Therefore, the number of applicants who had at least 4 years' experience and a degree is (E) = 5.Related questions
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