Question Bank - General Aptitude

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What is the percentage of B-positive cases from the total positive cases reported?

A.
48.57
B.
47.57
C.
49.51
D.
46.11

Solution:

HospitalHospitalHospitalHospitalHospitalTotalReported Blood groupWXYZ (1000)(500)(1000)(500)3000A Positive300150350100900B Positive350100300100850A Negative1505015050400B Negative1005050150350Calculation:Total number of B Positive cases = 350 + 100 + 300 + 100 = 850Total positive samples = (A Positive + B Positive) = 900 + 850 = 1750Required percentage = [Total number of A Negative cases/Total number of blood samples collected] × 100? (850/1750) × 100 = 48.57%? Required percentage is 48.57%

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