Răspunsuri

2014-04-22T20:53:50+03:00
X-pret initial
x-10x/100=162
x-x/10=162
10x-x=1620
9x=1620
x=180 lei
90%.............162 lei 100% .................. x lei x = 100 x 162 supra 90 => x = 180 lei.