Răspunsuri

2014-03-01T19:10:22+02:00
X Pret
reducere1
 x-10x/100=RED1
x-x/10=Red1

Reducere 2:

red1-red1 15/100=1377
red1-3red1/20=1377  Amplificam cu 20 pt a avea ac. numitor

20 red1-3 red1=27540
17 red1=27540
red1=1620

x-x/10=Red1
x-x/10=1620
10x-x=16200
9x=16200
x=1800 lei

Pret initial=1800
1 5 1