Question

din 15 kg de lamai obtinem 9l de suc. din cate kg vom obtine 15 l de suc?

Answer 1

   $15~kg...9~l \\ x~kg...15~l \\ \bold{Rezolvare:} \\ \text{Marimile sunt direct proportionale}\\\frac{15}{x}= \frac{9}{15} \\ \\ \frac{15*15}{9}= \frac{225}{9}= \bold{25~kg} \\ \bold{Raspuns:} \text{Din 25 kg se obtin 15 l de suc.}$