Question Bank - General Aptitude

Here's the question bank on all the general aptitude topics.

What is the percentage of blood group reported in the table?

A.
82.12
B.
83.33
C.
84.33
D.
84.12

Solution:

HospitalHospitalHospitalHospitalHospitalTotalReported Blood groupWXYZ (1000)(500)(1000)(500)(3000)A Positive300150350100900B Positive350100300100850A Negative1505015050400B Negative1005050150350Calculation:Total reported blood group = A Positive + B Positive + A Negative + B Negative? 900 + 850 + 400 + 400 + 350 = 2500Total blood samples collected by hospitals = W + X + Y + Z ? 1000 + 500 + 1000 + 500 = 3000Required percentage = [Total reported blood group/Total number of blood samples collected] × 100? (2500/3000) × 100 = 83.33%? Required percentage is 83.33%

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