Răspunsuri

2014-04-24T20:44:33+03:00
90 kg grau........60 kg faina
x kg grau...........50 kg faina
este proportionalitate directa deci impartim pe diagonala
x= 90*60/50 
x=4500/60
x=75 kg grau
1 5 1
2014-04-24T20:54:48+03:00
90----------60
a------------50   regula de trei simpla  90x50:60=75 kg grau
1 3 1