Explicație pas cu pas:
P+15/100*P =P+3*P/20(pretul dupa scumpire)
(P+ 3*P/20) - 10/100(P+3*P/20)=23*P/20-1/10*23*P/20=(23*10*P-23*P)/200=23*9*P/200
23*9*P=1593.9*200
P=(1593.9*200)/(23*9)
P=1540 lei
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Explicație pas cu pas:
P+15/100*P =P+3*P/20(pretul dupa scumpire)
(P+ 3*P/20) - 10/100(P+3*P/20)=23*P/20-1/10*23*P/20=(23*10*P-23*P)/200=23*9*P/200
23*9*P=1593.9*200
P=(1593.9*200)/(23*9)
P=1540 lei