a-grau
b-borumb
c-orz
a+b+c=4537
b=a+145
b= c-245, deci c=b+245......c=(a+145)+245
a+(a+145)+[(a+145)+245]=4537
3a+535=4537
3a=4537-535=4002
a=4002/3=1334 tone grau (primul siloz)
b=a+145=1334+145=1479 tone porumb (al doilea siloz)
c=b+245=1479+245=1724 tone orz (al treilea siloz)