SOLUTION: Find both the number of combinations and the numbers of permutations of 10 objects taken 4 at a time.

Algebra ->  Permutations -> SOLUTION: Find both the number of combinations and the numbers of permutations of 10 objects taken 4 at a time.      Log On


   

Question 475195: Find both the number of combinations and the numbers of permutations of 10 objects taken 4 at a time.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
10P4 = 10*9*8*7 = 5040

10C4 = (10*9*8*7)/(4*3*2*1) = 210