document.write( "Question 1194388: A woman borrows $1500, agreeing to pay $100 at the end of each month to reduce the outstanding principal and agreeing to pay the interest due on any unpaid balance at a rate of 12% per annum (i.e. 1% per month). Determine the sum of all interest payments. \n" ); document.write( "
Algebra.Com's Answer #827717 by ikleyn(52814)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Tutor @MathTherapy gave a brilliant treatment of the problem and showed the way to solve it.\r
\n" ); document.write( "\n" ); document.write( "But his calculations need to be corrected.\r
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\n" ); document.write( "\n" ); document.write( "I made this correction in the Table below.\r
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document.write( "     Month	      Debt         Interest (in dolars)\r\n" );
document.write( "       (end of the month)       paid at the end of the month\r\n" );
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document.write( "      1		      1400		14\r\n" );
document.write( "      2		      1300		13\r\n" );
document.write( "      3		      1200		12\r\n" );
document.write( "      4		      1100		11\r\n" );
document.write( "      5		      1000		10\r\n" );
document.write( "      6		       900		 9\r\n" );
document.write( "      7		       800		 8\r\n" );
document.write( "      8		       700		 7\r\n" );
document.write( "      9		       600		 6\r\n" );
document.write( "     10		       500		 5\r\n" );
document.write( "     11		       400		 4\r\n" );
document.write( "     12		       300		 3\r\n" );
document.write( "     13		       200		 2\r\n" );
document.write( "     14		       100		 1\r\n" );
document.write( "     15		         0		 0\r\n" );
document.write( "---------------------------------------------------------------\r\n" );
document.write( "                                       sum = 14 + 13 + 12 + . . . + 1 = 105.\r\n" );
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document.write( "ANSWER.  The sum of all interest payments is $105.\r\n" );
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