Question 347939

There are 7 contract and 12 firms, there is no restriction 

 first contract can be given to anyone so, by 12 ways..
 
  since there is no restriction , second can be given by 12 ways.

   similarly, each contract can be given to firm by 12 ways.


total no. of ways = 12*12*12...( 7 times) 

                  =  12 ^7