Ways of selecting first team:
8C2 = 28
2nd team: 6C2 = 15
3rd team: 4C2 = 6
4th team: 2C2 = 1
Therefore, using the multiplication principle, the total number of ways =
28 X 15 X6 X 1 = 2520
However, order of selection does not matter, hence we must divide
this number by the factorial of the number of teams...
Answer = 2520/4! = 105
had this problem always when do i add n when do i multiple.. pls someone explain!
vazlkaiye porkalam vazltuthan parkanum.... porkalam maralam porkalthan maruma