Răspunsuri

2014-09-01T13:53:12+03:00
X-pretul initial

10% din x=  10/100 * x=  1/10 * x=  x/10 -scumpirea

x+x/10=  (10x+x)/10=  11x/10 -noul pret

11x/10= 220

x=220*10/11

x=200
2014-09-01T13:56:34+03:00
100%+10%=110%

110%....................220 lei
100%........................ xlei
________________________

x=100x220/110
x=200 lei