document.write( "Question 752387: QUESTION: SOME TREE-DIGIT NUMBERS, SUCH AS 101 AND 313, READ THE SAME FORWARD AND BACKWARD, IF YOU SELECT A NUMBER FROM ALL THREE-DIGIT NUMBERS, FIND THE PROBABILITY THAT IT WILL READ THE SAME FORWARD AND BACKWARD...? \n" ); document.write( "
Algebra.Com's Answer #457736 by AnlytcPhil(1807)\"\" \"About 
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document.write( "Such numbers as 101 AND 313 are called \"palindromes\".\r\n" );
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document.write( "Such numbers are of the form ABA\r\n" );
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document.write( "There are 10 digits but since we cannot choose 0\r\n" );
document.write( "for the first digit in a 3-digit number, we can only \r\n" );
document.write( "choose one of the other 9 digits for the A.  For each\r\n" );
document.write( "of those 9 ways to choose A, we can choose the B in\r\n" );
document.write( "10 ways because 0 CAN be chosen for the middle digit B. \r\n" );
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document.write( "So that's 9x10 wars or 90 ways\r\n" );
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document.write( "Edwin
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