document.write( "Question 1160735: A group of friends go out for supper one evening. They decide to share the bill which comes to R960. However, two of them forget their wallets and cannot pay. The remaining friends each now have to pay an extra R40 to cover the cost. How many friends are in the group? \n" ); document.write( "

Algebra.Com's Answer #784133 by josgarithmetic(39617) $\"\"$ $\"About$

You can put this solution on YOUR website!
The principal is $\"COST%2FPERSONS=PRICE\"$ \r
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\n" ); document.write( "\n" ); document.write( "n, unknown number of friends in the group\r
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\n" ); document.write( "\n" ); document.write( "I assume here that EACH paying friend had to pay an extra R40.
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document.write( "                     PRICE          PERSONS         COST\r\n" );
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document.write( "ALL FRIENDS          960/n           n              960\r\n" );
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document.write( "TWO NOT PAY         960/(n-2)        n-2            960\r\n" );
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document.write( "DIFFERENCE           40\r\n" );
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\n" ); document.write( " $\"highlight_green%28960%2F%28n-2%29-960%2Fn=40%29\"$ --------simplify and solve this for n.
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