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Question Description

A student scores 72 out of 100 on a test. If the maximum score on the next  test is also 100 points , what score does the student need to maintain at least an average of 78?

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Explanation & Answer

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His first score = 72

If his average >= 78, then his total score in two tests must be > = 2*78 =156

Since his first score is 72, he must score at least 156-72 = 84

His score in the next test >= 84 

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znquninag (2757)
University of Virginia

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