Răspunsuri

2014-09-01T12:27:11+03:00
X - pret initial

x-10x/100= 1080   Amplificam cu 100
100x-10x=108000
90x=108000
x=108000:90
x=1200 lei pret initial

Deci reducerea a fost de 1200-1080=120 lei
2014-09-01T12:44:54+03:00
X * 10 /100 =  x/10
x - x/10 = 1080
9x = 1080
x = 1080/9
x = 120 lei reducerea
varianta B