Respuesta :

formula:
[tex] \frac{l - p}{l} \times 100 = d[/tex]
L= List price
P= Price Paid
D= Discount percentage
[tex] \frac{20 - 16}{20} \times 100 = [/tex]
[tex] \frac{4}{20} \times 100[/tex]
[tex].2 \times 100 = 20[/tex]
[tex]answer \: is \: 20\%[/tex]