Hi

Sheryl: .85*200 = 170 correct and 30 incorrect

Fernando: .90*180 = 162 correct and 18 incorect 

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
 Sheryl correctly answered 85% of the questions on her 200-question biology final. 

# correct = 0.85*200 = 170 correct answers

# incorrect = 30 

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Fernando scored a 90% on his 180-question chemistry final.

# correct = 0.90*180 = 162 correct answers

# incorrect = 18

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(A) Who answered more question correctly?:: Sheryl

(B) Who answered more question incorrectly?:: Sheryl

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Cheers,

Stan H.

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