Question

dupa o scumpire cu 20% un obiect costa 24 lei aflati pretul iniyial ?

Answer 1

x-pret initialx+20/100x=24x+x/5=24se amplifica prima fractie cu 55x/5+x/5=246x/5=246x=120x=20

Answer 2

$\frac{20}{100} x+x=24=\ \textgreater \ \frac{20x+100x}{100} =24=\ \textgreater \ 12x=240$
$x=240:12=\ \textgreater \ x=20 lei pretul initial$