👤

Care e regula de trei simpla?

Răspuns :

dam un exemplu 
 
2=4
6=X 
 X = 6X4 supra 2 


 EXP:        7KG....................................10LEI                                                                                     12KG...................................... ?X LEI REZOLVARE   :                                                                                                                        7/12 =10/X=> X=10 x 12/7= 120/7