document.write( "Question 766583: Suppose a “combination” lock has the numbers 0 to 39 on it. In order to open the lock, a person must dial the correct three number sequence like 12 left, 24 right, 6 left. \r
\n" ); document.write( "\n" ); document.write( "1. How many different three-number sequences are possible assuming that numbers can be repeated?\r
\n" ); document.write( "\n" ); document.write( "2. How many different three-number sequences are possible if numbers may not be repeated?
\n" ); document.write( "

Algebra.Com's Answer #467059 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Suppose a “combination” lock has the numbers 0 to 39 on it. In order to open the lock, a person must dial the correct three number sequence like 12 left, 24 right, 6 left. \r
\n" ); document.write( "\n" ); document.write( "1. How many different three-number sequences are possible assuming that numbers can be repeated?
\n" ); document.write( "40*40*40 = 64000
\n" ); document.write( "==================
\n" ); document.write( "2. How many different three-number sequences are possible if numbers may not be repeated?
\n" ); document.write( "40*39*38
\n" ); document.write( "
\n" ); document.write( "
\n" );