207 



Um ben (5tnf(u§ ber gru*t6arfett be§ $Bcben§ näf)er 

 fennen 511 lernen, n^cITen rviv nun für p nacb unb naä) 

 anbete 2Bert6e t'ePen. 



1) (5g fei p = 300 c, 10 tft für u =100 0, unb q = 12 

 ber 9(rbettercbn A = V'ap = 173 e, 



ber 3tnö|a^ z = ^^~^ = 6,1 r6t. 

 aq ^ 



2) p fei - 200. 



'mhann tft A = Vap = 142 



unb z = ^^^-^ ^ 3^, pßt. 

 aq ^ 



3) ?5Ür p = 150 



tft A = Kap = 122 



unb Z = — ?^Ili^ =r 1 ,s3 p(5t. 



aq 



4) (ä§ fei p = a = 100 c, 



fc tft A = 1 ap = 100 



. l' ap — a 



unb z = — ~ = 



aq 



2ötr feigen ^ter a(f o, ba^ 'äxbeitev unb Ä a p 1 1 a 1 1 ''t e n 

 an ber Steigerung ber ^h-cbufticn ein gemein^ 

 fd)aft(td)e§ Sntereffe ^a6en, ta^ 3?etbc rerltercn, 

 n^enn tie ^Prebufticn abnimmt, unb ^eite gewinnen, menn 

 fte junimmt. 



5(ufga6e. S'en 35>ertb rcn p ju finden, irenn z = 



2 m- ift. 



.iff=s .-,Vap — a V'lOOp-100 2 



3(r,bann tit -^ = ^^ = -^^ 



alfo Kl 00p — 100 = 24 

 l'100p= 124 

 100p = 124^= 15376 



P = 153,76 



unb A = V'ap = 124 



