Question

Se face o reducere de10%iar acum frigiderul costa 1080 lei. cat a dupa reducere

Answer 1

$x=\ \ pret\ \ initial \\ \\ x- \frac{10x}{100} =1080 \\ \\ \frac{100x-10x}{100} =1080 \\ \\ 90x=108000 \\ \\ x=108000:90 \\ \\ x=1200\ \ lei\ \ pretul\ \ initial \\ \\ 1200-1080=120 \ \ lei\ \ reducerea$