A soap manufacturer is experimenting with several formulas of soap powder. Three of the formulas were selected for further testing by a panel of homemakers. The ratings for the three formulas are as follows: 
What is the sum of the ranks for Formula A? _______
Definitions:
Proposition
A speech or affirmation that indicates an opinion or assessment, liable to be correct or incorrect.
Obverse
In logic, a method for transforming a proposition by negating both the predicate and the subject, and replacing the predicate with its complement.
Propositions
Declarations or claims that convey a belief or viewpoint, capable of being either correct or incorrect.
Converse
In logic, a statement formed by exchanging the hypothesis and conclusion of a given conditional statement.
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