Question

Question #06e30

Answer 1

The mark up was $10.

Explanation:

This question can be rewritten as:

What is 25% of $40.

"Percent" or "%" means "out of 100" or "per 100", Therefore 25% can be written as `25/100`
.
When dealing with percents the word "of" means "times" or "to multiply".

Finally, lets call the number we are looking for "m" for "mark-up".

Putting this altogether we can write this equation and solve for `m` while keeping the equation balanced:

`m = 25/100 xx $40`

`m = 1/4 xx $40`

`m = $10`