document.write( "Question 818110: how many three digit natural numbers can be named with each of the digits 5, 6, 7 and 8 used at most once \n" ); document.write( "
Algebra.Com's Answer #492345 by stanbon(75887)\"\" \"About 
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how many three digit natural numbers can be named with each of the digits 5, 6, 7 and 8 used at most once
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\n" ); document.write( "1st digit: 4 ways
\n" ); document.write( "2nd digit: 3 ways
\n" ); document.write( "3rd digit: 2 ways
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\n" ); document.write( "Total = 4P3 = 4!/1! = 4*3*2 = 24 numbers
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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