Question

Daca asez ciresele cate 5 kg intr-o lada raman 4 kg jos. Daca asez cate 9 kg intr-o lada raman 4 lazi goale. Cate kg de cirese am si cate lazi?.

Answer 1

Răspuns:

5l+4=c

9×(l-4)=c

9l-36=c

5l+4=9l-36

4+36=9l-5l

4l=40=>l=40:4=>l=10 ladite

5×10+4=54 kg cirese