The question states that "Leo can buy a computer for x dollars" would refer to x as the base price in this case. I just came across the MGMAT forum as well where they have used x as the base price over which the sales tax is calculated.
The "Is the total cost of the computer greater in State A than in state B" gives away the fact that its the base price. Else the question would be simply stating if p1>p2. In such a scenario, the conditions will be insufficient, and the above assumption would introduce 2 more variables for the base price.
Admins, Please correct me if I am wrong
Feed me some KUDOS! *always hungry*
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