Question

dupa o reducere cu20%o carte costa 96de lei.determinati pretul cartii inainte de reducere

Answer 1

100-20/100 ·x=96[lei]
⇒x=96/80/100[lei]
⇒x=96·100/80[lei]
⇒x=96·10/8[lei]
⇒x=96·5/4[lei]
⇒x=24·5[lei]⇒x=120[lei-pretul cartii inainte de reducere];