document.write( "Question 1123457: the number of three-digit odd numbers with no repeated digits is:
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document.write( "A) 280
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document.write( "B) 320
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document.write( "C) 336
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document.write( "D) 360
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document.write( "E) 405 \n" );
document.write( "
Algebra.Com's Answer #739789 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "(1) The units digit has to be odd: how many choices? \n" ); document.write( "(2) The hundreds digit can't be 0; and it can't be the same as the units digit: how many choices? \n" ); document.write( "(3) The tens digit can't be the same as either the units digit or the hundreds digit: how many choices? \n" ); document.write( "By the fundamental counting principle, the number of 3-digit numbers with the specified restrictions is the product of the numbers of choices for each digit. \n" ); document.write( " |