Răspuns :
Răspuns:
10x/100=x/10 - prima scumpire
x+x/10=11x/10 - noul pret
10/100·11x/10=11x/100 - a2a scumpire
11x/10 +11x/100= (110x+11x)/100= 121x/100 -noul nou pret
121x/100=1936
121x=1936·100
x=193600:121
x=1600 lei pretul initial
x - pretul initial
10% din x = 10/100 · x = 1/10 · x = x/10 → prima scumpire
x + x/10 = ( 10x + x )/10 = 11x/10 → noul pret dupa prima scumpire
10% din 11x/10 = 10/100 · 11x/10 = 1/10 · 11x/10 = 11x/100 → a doua scumpire
11x/10 + 11x/100 = ( 110x + 11x )/100 = 121x/100 → noul pret dupa a doua scumpire
121x/100 = 1936
x = ( 100·1936 ) / 121
x = 193600 / 121 ⇒ x = 1600
Raspuns: Pretul initial este de 1600.