document.write( "Question 478068: Find the difference between the sum of all odd numbers and even numbers from 25 to 100?
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Algebra.Com's Answer #327606 by robertb(5830) $\"\"$ $\"About$

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The number of odd integers from 25 to 99:\r
\n" ); document.write( "\n" ); document.write( "99 = 25 + (n-1)2 ==> 74 = (n-1)2 ==> 37 = n-1 ==> n = 38\r
\n" ); document.write( "\n" ); document.write( "==> $\"S%5Bo%5D+=+%2838%2F2%29%2825+%2B+99%29+=+19%2A124+=+2356\"$ \r
\n" ); document.write( "\n" ); document.write( "The number of even integers from 26 to 100:\r
\n" ); document.write( "\n" ); document.write( "100 = 26 + (n-1)2 ==> 74 = (n-1)2 ==> 37 = n-1 ==> n = 38\r
\n" ); document.write( "\n" ); document.write( "==> $\"S%5Be%5D+=+%2838%2F2%29%2826+%2B+100%29+=+19%2A126+=+2394\"$ \r
\n" ); document.write( "\n" ); document.write( "==> $\"S%5Be%5D+-+S%5Bo%5D+=+2394+-+2356+=+38\"$ . \n" ); document.write( "

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