\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
Emma is preparing a special mix for concrete. The table below shows the number of kilograms of cement needed for a certain number of liters of water.
Cement (kg) \(\textcolor{colordef}{4}\) \(\textcolor{colordef}{8}\) \(\textcolor{colordef}{12}\)
Water (L) \(\textcolor{colorprop}{6}\) \(\textcolor{colorprop}{12}\) \(\textcolor{colorprop}{18}\)
Calculate the number of liters of water per kilogram of cement.