Răspunsuri

2014-06-26T16:17:57+03:00
840:5=168 kg de hrana consuma 14 vaci intr-o zi
168:14=12 kg de hrana consuma o vaca intr-o zi
12*12=144 kg de hrana consuma o vaca in 12 zile
144*10=1440 kg de hrana consuma 10 vaci in 12 zile.
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2014-06-26T16:20:57+03:00
14 vaci .....5 zile ....840 kg
10 vaci ...12 zile .... x kg
x=10 * 840 :14
x=600 kg
5 3 5