The sale price at which a store sells an article is 25% more than its cost price. If the sale price is an integer, which of the following cannot be the cost price?  Pick one:
A) $23 B) $28 C) $36 D) $44 E) $72
Sale Price = (5/4)*(Cost Price)   If the sale price is an integer, then the cost price must be divisible by 4.   The answer is $23.
<result>A</result>
The sale price at which a store sells an article is 25% more than its cost price. If the sale price is an integer, which of the following cannot be the cost price?