document.write( "Question 979154: If the simple interest on a certain sum for 15 months at 7.5% per annum exceeds the simple interest on the same sum for 8 months at 12.5% per annum by $32.50, then the sum in ($) is : \n" ); document.write( "

Algebra.Com's Answer #600451 by anand429(138) $\"\"$ $\"About$

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$\"S%2A%287.5%2F100%29%2A%2815%2F12%29+=+S%2A%2812.5%2F100%29%2A%288%2F12%29+%2B+32.50\"$
\n" ); document.write( "=> $\"112.5%2AS+=+100%2AS+%2B+32.5%2A1200\"$
\n" ); document.write( "=> $\"12.5%2AS+=+39000\"$
\n" ); document.write( "=> $\"S=+39000%2F12.5\"$
\n" ); document.write( "=> $\"S=3120\"$ \n" ); document.write( "

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