Must Be True Questions - - Question 29

The only way that bookstores can profitably sell books at below-market prices is to get the books at a discount from ...

rzamor87 September 16, 2019

Answer E

How is answer E diagrammed?

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Ravi September 16, 2019

@rzamor87,

Great question.

Diagramming the stimulus, we have

Profitably Sell -> Discount.
No High Volume -> No Discount.
High Volume -> Cater to Mass Tastes OR Specialized Market Access.

If we take the contrapositive of the second statement, we can link up
all of the terms

2nd statement: No High Volume -> No Discount
Contrapositive of 2nd statement: Discount - >High Volume

Profitably Sell - >Discount - >High Volume - >Cater to Mass Tastes or
Specialized Market Access

Let's take a look at (E).

(E) says, "A bookstore that not only caters to mass tastes but also
has exclusive access to a large specialized market cannot profitably
sell books at below-market prices."

(E) doesn't follow from the diagram. Here's how (E)'s diagram looks:

Bookstore that caters to mass tastes and has exclusive access to a
large specialized market - >not profitably sell books at below-market
prices

(E) contradicts the last statement in the chain. In order for the
contrapositive to work, both of the flipped conditions must be
negated, and they're not both negated with (E), so we can get rid of
this choice.

Does this make sense? Let us know if you have any other questions!