Răspunsuri

2014-04-15T12:47:03+03:00
X- pretul initial

1 scumpire:
x+10x/100= A - noul pret

2 scumpire
A+20A/100=2376
A+A/5=
2376 Amplificam cu 5
5A+A=11880
6A=11880
A=1980

x+10x/100= 1980
x+x/10=1980 Amplificam cu 10
10x+x=19800
11x=19800
x=1800