SOLUTION: An entrance test is made up of three parts. Each part has 20 questions. What is the maximum number of questions one can fail and still get an overall average of 70% to pass the tes
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Question 628032: An entrance test is made up of three parts. Each part has 20 questions. What is the maximum number of questions one can fail and still get an overall average of 70% to pass the test?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
An entrance test is made up of three parts. Each part has 20 questions. What is the maximum number of questions one can fail and still get an overall average of 70% to pass the test?
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Total # of questions = 3*20 = 60.
Max number of incorrect answers = 0.30*60 = 18
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Cheers,
Stan H.
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