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A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

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A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?

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Total number of problems in the test = 20 

Students score = 80 % 

Number of problem answered = \(\frac{80}{100}\) x 20 

= 16

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