     243

, ,     25%    
    .  , ^ = 1  ^ = 1  (0,25) = 1,25 6. 
   , :

 ^ = (1,25  17,52%) + (-0,25  4%) =

= 20,90%,
  , :

<, = 1,25  12,30% =

= 15,38%.

 . 9.6 ,    (  F)  
  ,     .  -
,        ,    
 .       .  ,
           
   .      -
   ,  ,  
   .

?		
30%		
	Charlie Co.. /	
20%	(/	
	/[	
	/ Able Co.	
10%		
7=4% '		
	| 1	i
		

. 9.6.       
  