Răspuns :
850000................100%
x.................60%
x=850000x100/60=510000 volume tehnica
850000-510000=340000 volume rest ( de electro, transport, fizica)
340000.....................100%
x..........................30%
x=340000x30/100=102000 volume electrotehnica
340000-102000=238000 rest volume
238000..........100%
x............20%
x=238000x20/100=47600 volume din domeniul transportului
850000-(510000+340000+102000+47600)=149600 volume fizica
x.................60%
x=850000x100/60=510000 volume tehnica
850000-510000=340000 volume rest ( de electro, transport, fizica)
340000.....................100%
x..........................30%
x=340000x30/100=102000 volume electrotehnica
340000-102000=238000 rest volume
238000..........100%
x............20%
x=238000x20/100=47600 volume din domeniul transportului
850000-(510000+340000+102000+47600)=149600 volume fizica
850000x60:100=510000 volume de tehnica
850000-510000=340000 rest
340000x30:100=102000 volume de electrotehnica
340000-102000=238000 rest
238000x20:100=47600 volume din domeniul transportului
238000-47600=190400 volume de fizica
V: 510000+102000+47600+190400=850000
850000-510000=340000 rest
340000x30:100=102000 volume de electrotehnica
340000-102000=238000 rest
238000x20:100=47600 volume din domeniul transportului
238000-47600=190400 volume de fizica
V: 510000+102000+47600+190400=850000