Question

intr-un tren s-au incarcat 90t de cereale ,2/10 grau,3/5porumb,iar restul orz.cate tone de orz sunt?

Answer 1

grau-2/10
porumb-3/5
orz-?
in total-90t,cereale
Rezolvare:
1)90:10x2=18-t grau
2)90:5x3=54-t porumb
3)18+54=72-t grau si porumb
4)90-72=18-t orz

Answer 2

grau =90:10x2=18(t)
porumb =90:5x3=18x3=54(t)
orz =90-(18+54)=90-72=18(t)
Raspuns:18 t