Question

Dupa doua cresteri consecutive de preturi , prima de 10 % , a doua de 15%, un calculator costa 1265 lei . Aflati pretul initial al calculatorului .
P.S. Rezolvare completa

Answer 1

100%+15%=115%
1265 : 115%=1100 lei
100%+10%=110%
1100 : 110%=1000 lei

Answer 2

 [tex]pretul \;\;de\;100/100\;creste\;cu\;10/100\;respectiv\;15/100 \;...\\ \Rightarrow\;\;(x\cdot\frac{110}{100})\cdot\frac{115}{100}=1265(lei)\;\\ \Rightarrow\;\;x=\frac{1265\cdot100\cdot100}{110\cdot115}=\frac{12650000}{12650}=1000(lei) [/tex]