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?	Choose the most appropriate option:  A) $12  B) $16  C) $31  D) $56  E) $92
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 $31.
<result>C</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?