Question

La un centru de paine , inainte de inchidere erau 4 clienti, care au cumparat toata cantitatea de paine . Sa se afle cate paini au fost , daca fiecare client a cumparat jumatate din painea care se gasea in momentul in care i-a venit randul si inca o jumatate de paine. ​

Answer 1

I. n/2 + 1/2 = (n+1)/2 n - (n+1)/2 = (n-1)/2
II. (n-1)/4+ 1/2 = (n+1)/4 (n-1)/2 - (n+1)/4 = (n-3)/4
III. (n-3)/8 + 1/2 = (n+1)/8 (n-3)/4 - (n+1)/8 = (n -7/8)
IV. (n-7)/16 + 1/2 = (n+1)/16 (n-7)/8 - (n+1)/16 = (n-15)/16 = 0
(n-15)/16 = 0 n = 15
I. 15/2 + 1/2 = 8
II. 7/2 + 1/2 = 4
III, 3/2 + 1/2 = 2
IV. 1/2 + 1/2 = 1