Wed 17 Nov, 2010 05:23 pm
On the last day of the first grading period Michael learns his grade for each class. If order doesn't matter and we know he has at least 1 of each of the 5 letter grades ( a b c d e) what is the total number of combinations of 7 final grades ( one for each class) that Michael can possibly receive for the first grading period?
Wild guess is it 7 cubed times 4 factorial?
@Miss L Toad,
yes that was wild, the answer is 5 cubed times 4 factorial