Răspunsuri

2014-08-13T09:57:21+03:00
100%+20%=120%

120%.................1200 lei
100%.................. x lei

x=100x1200/120
x=1000 lei
2014-08-13T10:00:29+03:00
X-pretul initial

20% din x= 20/100 * x= x/5 * x = x/5  =majorarea

x+x/5= (5x+x)/5=  6x/5-noul pret

6x/5=1200

x=5*1200/6

x=5*200

x=1000