1) 3m....8h
5m....xh => x=[tex] \frac{5*8}{3} [/tex] = [tex] \frac{40}{3}[/tex] = 13,(3) ore
2) 5m....2s
2m....xs =>x=[tex] \frac{2*2}{5} [/tex] = [tex] \frac{4}{5} [/tex] = 0,8saptamani
3) 5m....18z....8h
12m....xz.....8h =>x=[tex] \frac{18*12}{5} [/tex] = [tex] \frac{216}{5} [/tex] =43,2 zile
4) 2r....6h
7r....xh =>