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Ines missed three questions on the test but answered 90% of the questions correctly. How many questions were on the test?
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Ines missed three questions on the test but answered 90% of the questions correctly. How many questions were on the test?

User Albert Bori
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1 Answer

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Since he answered 90% of the questions correctly, 10 percent were answered incorrectly. Therefore 3 problems is 10% of the whole test. Then the whole or 100% of the test is 100/10=10 times this amount or 3*10=30 questions. 
User Pravanjan
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