What percentage should be removed?

[Phisico]

Homework Statement

What percentage should be removed ?

Relevant Equations

I need some explanation

The coat costs $20 by how much percentage it should be reduced to get $5
Solution
5+15=20
5*5=25%
Explain if I'm wrong please

 

[Drakkith]

You have the percentage the coat should be reduced to, instead of how much the cost should be reduced by.

 

[Mark44]

Problem Statement: What percentage should be removed ?
Relevant Equations: I need some explanation

The coat costs $20 by how much percentage it should be reduced to get $5

What does "to get $5" mean? Will the price of the coat be reduced $5, to a sale price of $15, or will the price be reduced to $5? If you want to get help in the problems you post, take care to present a clear problem description.

Solution
5+15=20
5*5=25%

No. 5*5 = 25, which is not the same thing as 25%.

Explain if I'm wrong please