document.write( "Question 837367: Find the mean of all the three-digit counting numbers with 24 as the sum of the digits \n" ); document.write( "
Algebra.Com's Answer #504574 by richard1234(7193)![]() ![]() You can put this solution on YOUR website! 996, 969, 699 \n" ); document.write( "987, 978, 897, 879, 798, 789 \n" ); document.write( "888\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Notice that each of these three rows average to 888. This works since we are cycling through all permutations of the digits, and the average \"value\" of each digit is 8. \n" ); document.write( " |