document.write( "Question 1026638: Find the missing number\r
\n" ); document.write( "\n" ); document.write( "2 8 9 31
\n" ); document.write( "1 3 2 11
\n" ); document.write( "3 7 5 28
\n" ); document.write( "5 2 3 ?\r
\n" ); document.write( "\n" ); document.write( "How to solve it......plz tell me Sir
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Algebra.Com's Answer #641944 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
\"Problems are best solved by those who created them...\" \n" ); document.write( "
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