document.write( "Question 1123291: Ms Selerac calculated the test average for 30 students as 72%. Then she found two test papers she forgot to include. The average for the class including the two papers was 73%. The average of just the two papers, written as percent, is: \n" ); document.write( "

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Ms Selerac calculated the test average for 30 students as 72%.
\n" ); document.write( " Then she found two test papers she forgot to include.
\n" ); document.write( " The average for the class including the two papers was 73%.
\n" ); document.write( " The average of just the two papers, written as percent, is:
\n" ); document.write( ":
\n" ); document.write( "Let t = total score of the two papers
\n" ); document.write( " $\"%28%2830%2872%29%2Bt%29%29%2F32\"$ = 73
\n" ); document.write( "2160 + t = 32 * 73
\n" ); document.write( "t = 2336 - 2160
\n" ); document.write( "t = 176
\n" ); document.write( "therefore
\n" ); document.write( "176/2 = 88% is the av of these two papers \n" ); document.write( "

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