Question

Problema 7 de mai jos , va rog rpd

Answer 1

c = cantitatea initiala de cirese

primul cumparator ia = c/2+1/2 = (c+1)/2 ; ramane c-c/2-1/2 = (2c-c-1)/2 = (c-1)/2

al doilea cumparator ia = [(c-1)/2]x(1/2)+1/2 = (c-1)/4+1/2 = (c-1+2)/4 = (c+1)/4

ramane dupa al doilea cumparator (c-1)/2-(c+1)/4 = (2c-2-c-1)/4 = (c-3)/4

al treilea cumparator ia = [(c-3)/4]x1/2+1/2 = (c-3)/8+1/2 = (c-3+4)/8 = (c+1)/8

c = (c+1)/2+(c+1)/4+(c+1)/8+3, numitor comun 8

8c = 4(c+1)+2(c+1)+c+1+24 ; 8c = 4c+4+2c+2+c+1+24 ;

8c-7c = 4+2+1+24 ; c = 31 kg