document.write( "Question 1147619: The sum of 99 consecutive odd, positive integers is the greatest perfect cube less than 999 999. Find the sum of the least and the greatest of the integers. \n" ); document.write( "
Algebra.Com's Answer #768961 by ikleyn(52858)\"\" \"About 
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document.write( "(1)  Notice that the sum of 99 consecutive odd integers is 99 times the average of the first and the last numbers in this sequence.\r\n" );
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document.write( "(2)  In other words,  the sum of 99 consecutive odd integers is 99 times half the sum of the first and the last numbers in this sequence.\r\n" );
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document.write( "(3)  \"root%283%2C999999%29\" = 99.99997... (approximately)\r\n" );
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document.write( "     It means that the greatest perfect cube less than 999999 is \"99%5E3\".\r\n" );
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document.write( "(4)  Thus the condition says\r\n" );
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document.write( "         \"%28%28a%5B1%5D%2Ba%5B99%5D%29%2F2%29%2A99\" = \"99%5E3\".\r\n" );
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document.write( "(5)  Hence,  \"a%5B1%5D\" + \"a%5B99%5D\" = \"2%2A99%5E2\" = 19602.\r\n" );
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document.write( "     It is the ANSWER to the problem's question.\r\n" );
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