Question Bank - General Aptitude

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What is the percentage of A-Negative from the total number of blood samples collected?

A.
14.22
B.
18
C.
13.33
D.
14.33

Solution:

HospitalHospitalHospitalHospitalHospitalReported Blood groupWXYZ(1000)(500)(1000)(500)A Positive300150350100B Positive350100300100A Negative1505015050B Negative1005050150Calculation:Total number of A Negative cases = 150 + 50 + 150 + 50 = 400Total number of blood samples collected = 1000 + 500 + 1000 + 500 = 3000Required percentage = [Total number of A Negative cases/Total number of blood samples collected] × 100? (400/3000) × 100 = 13.33%? Required percentage is 13.33%

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