Răspuns :
x- pret initial
x+15x/100=46 / *100
100x+15x=4600
115x=4600
x=4600:115
x=40 lei
x+15x/100=46 / *100
100x+15x=4600
115x=4600
x=4600:115
x=40 lei
100+15=115%
46............115
x................100
x=46:115x100=0,4x100=40 lei
46............115
x................100
x=46:115x100=0,4x100=40 lei