!___!___!___!___! primul sac
!___!___!___!___! + !___! : 5 = !___! al doilea sac
!___! al treilea sac
avem in total sase segmente edale
834 :6=139 kg grau sunt il al treilea sac
139 x 4 = 556 kg in primul sac
(556+139) : 5= 695 : 5 = 139 kg in al doilea sac