Răspuns :
100-72=28 %
14t ---------28
x t-----------72
x=14*72/28=36
36+14=50 t cantitate initiala de materiale
14t ---------28
x t-----------72
x=14*72/28=36
36+14=50 t cantitate initiala de materiale
x-cantitatea initiala
x-14=x·72/100
x-72x/100=14
100x-72x=14·100
28x=1400
x=1400/28
x=50 tone
verificare
50·72/100=360/10=36 marfa din stoc
50-36=14 t s-a vandut
x-14=x·72/100
x-72x/100=14
100x-72x=14·100
28x=1400
x=1400/28
x=50 tone
verificare
50·72/100=360/10=36 marfa din stoc
50-36=14 t s-a vandut