Question

Vă roooog trei probleme dintre toate acestea. Mulțumesc!

Answer 1

Răspuns:

12) 600kg grau............200 kg faina

      x...............................180 kg faina

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       x=600·180:200=540 kg grau

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16) 18 copii.....................720 puieti..........12 zile

     24 copii....................720 puieti..............x

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     x=18·12:24=9 zile

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17) 3 muncitori...............15 zile

       x................................9 zile

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   x=3·15:9=5 muncitori

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18) 18 minute...........1020 pasi

      12 minute.................x

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   x=12·1020:18=680 pasi

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19)  30 pers................32 zile

      40 pers..................x

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  x=30·32:40=24 zile