document.write( "Question 1162672: Hi\r
\n" ); document.write( "\n" ); document.write( "The average score of a group taking a test was 80. If the 6 lowest scores which averaged 50 were dropped the average of the remaining scores would be 84.\r
\n" ); document.write( "\n" ); document.write( "How many were in the test group.\r
\n" ); document.write( "\n" ); document.write( "Thanks \n" ); document.write( "
Algebra.Com's Answer #786520 by VFBundy(438)\"\" \"About 
You can put this solution on YOUR website!
X equals the number in the test group. The total of the test scores (before the lowest tests were dropped) is 80x.
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\n" ); document.write( "The total of the test scores after the lowest tests were dropped is 84(x-6)...or, 84x - 504.
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\n" ); document.write( "If the 6 lowest scores, which average 50, were dropped, this means the total of those dropped scores is 300. This means '84x - 504' is 300 less than '80x'.
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\n" ); document.write( "Therefore:
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\n" ); document.write( "80x = (84x - 504) + 300
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\n" ); document.write( "Solve for x:
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\n" ); document.write( "80x = 84x - 204
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\n" ); document.write( "-4x = -204
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\n" ); document.write( "x = 51\r
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