document.write( "Question 251781: A teacher allows the students to each throw out their lowest test score in order to increase their overall grade. The original mean score of 5 tests is 75.2 After the removal of the lowest test, the mean score becomes 80.25. What is the score of the removal test?
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Algebra.Com's Answer #183462 by stanbon(75887) $\"\"$ $\"About$

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A teacher allows the students to each throw out their lowest test score in order to increase their overall grade. The original mean score of 5 tests is 75.2 After the removal of the lowest test, the mean score becomes 80.25. What is the score of the removal test?
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\n" ); document.write( "Original test score sum:
\n" ); document.write( "sum = 5*75.2 = 376 points
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\n" ); document.write( "Let \"x\" be the score that was removed.
\n" ); document.write( "Points remaining = 376-x
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\n" ); document.write( "Equation:
\n" ); document.write( "New average = (376-x)/4 = 80.25
\n" ); document.write( "376-x = 4*80.25
\n" ); document.write( "276-x = 321
\n" ); document.write( "x = -45
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\n" ); document.write( "The score thrown out was 45
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "

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