Question 360174
14 are to be chosen.
The 1st is 1 of 20.
The 2nd is 1 of 19, etc
--> 20*19*18*17*16*15*14*13*12*11*10*9*8*7...1
--------------
But, since a jury of A, B, C, D ... etc is the same as A, D, B, C... it's necessary to divide by 14*13*12*...1
The result is 20*19*18*17*16*15*14*13*12*11*10*9*8*7
This is 20!/((20-14)!*14!)
= 20!/14!6!
= 38760 possibilities
--------------