document.write( "Question 1016875: How many 4-digits even passcode can be formed from no. 0,3,5,7,9 w/o repitition?\r
\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( "
\n" );
document.write( "\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #633241 by mathmate(429)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Question: \n" ); document.write( "How many 4-digits even passcode can be formed from no. 0,3,5,7,9 w/o repitition? \n" ); document.write( " \n" ); document.write( "Solution: \n" ); document.write( " \n" ); document.write( "The only way we get even number out of the given 5 digits is to end the code with a zero. \n" ); document.write( "Since there is no repetition allowed, we are left with choosing 3 digits out of the remaining 4 digits (3,5,7,9). \n" ); document.write( "The number of permutations is therefore 4*3*2=24.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |