document.write( "Question 682155: a pupil's average for five test is 84%. how many must he get in his sixth test so that his average on six tests will be 87%? \n" ); document.write( "
Algebra.Com's Answer #423057 by stanbon(75887)\"\" \"About 
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a pupil's average for five test is 84%. how many must he get in his sixth test so that his average on six tests will be 87%?
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\n" ); document.write( "Equation:
\n" ); document.write( "Average = (5*84+x)/6 = 87
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\n" ); document.write( "(420+x) = 522
\n" ); document.write( "x = 102
\n" ); document.write( "Note: He cannot average 87 for 6 tests.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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