Question

Doi brutari fac 200de paini in 2 ore. Cati brutari vor face 500 de paini in 5 ore

Answer 1

5 brutari vor face 500

Answer 2

Regula de 3simpl

2 ............ 200 p.......... 2h
x (brutari) ..500p ......5h

$\frac{2}xy} = \frac{200}{500}$$x = \frac{500 x 2}{200}$
Se calculeaza si se obtine 5. 

Eu asa am gandit, sper si cred ca este bine. :D Weekend placut!