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DAU COROAN! Un gospodar are in gradina iepuri si gaini, in total 38 capete si 106 picioare. Cati iepuri si cate gaini sunt?

Răspuns :

i+g=38=>i=38-g
4i+2g=106, inlocuim
4(38-g)+2g=106
152-4g+2g=106
152-106=2g
46=2g
g=23 (gaini)
i=38-23=15(iepuri)