document.write( "Question 1191843: How many 3-digits numbers can be formed using the digits
\n" ); document.write( "from 1 to 5 if the digit 2 is not used? \n" ); document.write( "
Algebra.Com's Answer #823691 by Edwin McCravy(20060)\"\" \"About 
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document.write( "We are selecting three digits from {1,3,4,5}\r\n" );
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document.write( "We can choose the first digit any of 4 ways, as 1,3,4, or 5.\r\n" );
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document.write( "For each of those 4 ways to choose the first digit, we can \r\n" );
document.write( "then choose the second digit any of 4 ways, as 1,3,4, or 5, \r\n" );
document.write( "since we can choose the same digit more than once.\r\n" );
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document.write( "That's (4)(4) ways we can choose the first two digits.\r\n" );
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document.write( "For each of those (4)(4) ways we can choose the first and \r\n" );
document.write( "second digits, we can then choose the third digit any of 4 \r\n" );
document.write( "ways, as 1,3,4, or 5, since we can choose the same digit \r\n" );
document.write( "more than once.\r\n" );
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document.write( "That's (4)(4)(4) ways we can choose the first three digits.\r\n" );
document.write( "Multiply that out.  That's the answer.\r\n" );
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document.write( "Edwin
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