document.write( "Question 302149: Locks combinations are made by using 4 digits. How many different lock combinations can be made if repetition of digits is allowed \n" ); document.write( "
Algebra.Com's Answer #216663 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Locks combinations are made by using 4 digits. How many different lock combinations can be made if repetition of digits is allowed \n" ); document.write( "--- \n" ); document.write( "1st digit: 10 ways \n" ); document.write( "2nd digit: 10ways \n" ); document.write( "3rd digit: 10 ways \n" ); document.write( "4th digit: 10 ways \n" ); document.write( "--- \n" ); document.write( "Total way = 10^4 = 10,000 \n" ); document.write( "============================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |