Răspuns :
x × 112 / 100 × 90 / 100=3600
x × 1008 / 1000 =3600
x=3600: 1008/1000
x=3600×1000/1008
x=3600000 / 1008
x=3571,42 lei
x × 1008 / 1000 =3600
x=3600: 1008/1000
x=3600×1000/1008
x=3600000 / 1008
x=3571,42 lei
Pret initial : P
dupa majorare P1 = P + 12% x P = P + 0,12P = 1,12P
dupa reducere P2 = P + 10% x P1 = P1 - 0,1P1 = 0,9P1 = 0,9 x 1,12P = 1,008P
1,008P = 3600
P = 3600, 1,008
P = 3571,43 lei
dupa majorare P1 = P + 12% x P = P + 0,12P = 1,12P
dupa reducere P2 = P + 10% x P1 = P1 - 0,1P1 = 0,9P1 = 0,9 x 1,12P = 1,008P
1,008P = 3600
P = 3600, 1,008
P = 3571,43 lei