# Workers

9 workers dig a canal 120 meters long for eight hours. For how long would be dig five workers canal 200 meters long?

Result

t =  24 h

#### Solution:

$m=120 / ( 9 \cdot \ 8)=\dfrac{ 5 }{ 3 } \doteq 1.6667 \ \\ t=200/(5 \cdot \ m)=200/(5 \cdot \ 1.6667)=24 \ \text{h}$

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