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

Răspuns :

840:5=168 kg consuma 14 vaci intr-o zi
168:14=12 kg consuma o vaca pe zi
12x10=120 kg consuma 10 vaci pe zi
120x12=1440 kg consuma 10 vaci in 12 zile