zahar tos=,,T"
zahar pudra=,,P"
zahar cubic =,,C"
TOTAL CANTITATE ZAHAR=,,a"
T+P+C=a
P=600x500gr=300 000gr=300kg
dar P=6a/10
deci 6a/10=300
simplificam 6 si 10 cu 2
3a/5=300
3a=300x5
3a=1500
a=1500:3
a=500kg
total cantitate zahar=500 kg
zahar pudra=300kg
zahar tos=3a/10=3x500/10=1500:10=150 kg
zahar cubic=500-(150+300)=500-450=50 kg