👤

Citi purcei si cite curci sint intr-o gospodarie, daca in total au:
48 de capete si 108 picioare



Dar datimi correct va rog


Răspuns :

48x4=192
192-108=84
84:2=42 curci
48-42=6purcei
verificare42x2+x4=84+24=108 picioare
a=purcei,b=curci
a+b=48⇒a=48-b
4a+2b=108
4(48-b)+2b=108
192-4b+2b=108
2b=192-108
2b=84⇒b=42 curci
a=48-b=6 purcei