a)dupa,o,scumpire,de,15%
320________100%
x___________15%
x=320x15/100=48lei,scumpirea=>pretul,nou,este,320+48=368lei
b)dupa,o,ieftinire,de,25%
320_________100%
x___________25%
x=320x25/100=80lei,ieftinirea=>pretul,nou,este,320-80=240lei
c)ieftinire,de,10%,inseamna,32lei=>320-32=288lei
ieftinire,de,15%,din,noua,suma
288__________100%
x_____________15%
x=288x15/100=43,2lei=>pretul,nou,este,288-43,2=244,8lei
