document.write( "Question 1035721: in a examination one marks is awarded for every correct as and 1/4 marks is deducted for every wrong answer a student answer 120 question and got 90 marks how many question did he answer correctly \n" ); document.write( "

Algebra.Com's Answer #651361 by JBarnum(2146) $\"\"$ $\"About$

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i will use elimination method
\n" ); document.write( " $\"c%2Bi=120\"$ multiply by 1
\n" ); document.write( " $\"c-%28i%2F4%29=90\"$ multiply by 4
\n" ); document.write( ".
\n" ); document.write( " $\"c%2Bi=120\"$
\n" ); document.write( " $\"4c-i=360\"$ add equations together
\n" ); document.write( " $\"5c=480\"$ divide by 5
\n" ); document.write( " $\"c=96\"$ \r
\n" ); document.write( "\n" ); document.write( "96 correct 24 incorrect (24/4=6)
\n" ); document.write( "96 marks minus 6 marks =90 marks \n" ); document.write( "

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