Answer:
30% discount
Step-by-step explanation:
Let the percent reduction be x%
Actual price =$400
Discounted price=$280
Therefore, by the problem => [tex]400-x%400=280[/tex]%*400=280
=>[tex]400-\frac{x}{100} *400=280\\400-4x=280\\-4x=280-400\\-4x=-120\\4x=120\\x=120/40\\x=30[/tex]
There was 30% discount on the camera