document.write( "Question 1151997: The average of two numbers is 11.the difference between them is 4,find the number \n" ); document.write( "

Algebra.Com's Answer #773916 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "When you solve similar problems  10 - 20 times, you will empirically come to this simple rule:\r\n" );
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document.write( "     The numbers in such problems are equal to the average PLUS / MINUS half of the difference between them.\r\n" );
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document.write( "Concretely, in this problem the numbers are\r\n" );
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document.write( "    11 +/-  = 11 +/- 2,   i.e.\r\n" );
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document.write( "    one number is 11+2 = 13, while the other number is  11-2 = 9.\r\n" );
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document.write( "ANSWER.  The numbers are 9 and 13.\r\n" );
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\n" ); document.write( "\n" ); document.write( "And it is absolutely correct rule, allowing you solve such problems mentally in the future.\r
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\n" ); document.write( "\n" ); document.write( "MEMORIZE and LEARN it once and for all.\r
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