14 vaci consuma in 5 zile 840 kg de hrana.Cat vor consuma 10 vaci in 12 zile

Răspuns :

840 : 14 = 60 kg de hrana consuma o vaca in 5 zile
 
60 : 5 = 12 kg de hrana consuma o vaca intr-o zi

10 x 12 x 12 = 120 x 12 =1440 kg de hrana vor consuma 10 vaci in 12 zile