Răspunsuri

2014-06-09T16:49:10+03:00
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2014-06-09T16:52:13+03:00
X = pretul initial
Dupa prima scumpire:  x + 10%*x = 1,1*x
Dupa a doua scumpire  1,1*x + 10%*(1,1*x) = 1,1 * 1,1 * x = 1,21*x = 605

x = 605 / 1,21 = 550 lei  pretul initial.