Book publishing executive: I am becoming increasingly convinced that

Question

Book publishing executive: I am becoming increasingly convinced that the interaction between book sales and literary quality is not a simple one. For example, I now believe that no number one best seller will win the major literary prizes. But I also believe that all major literary prize winners will have unusually high long-term sales.

If the beliefs that the book publishing executive claims to hold are true, which of the following must also be true on the basis of them?

A. No books with unusually high long-term sales are number one best sellers.
B. At least some number one best sellers are not books with unusually high long-term sales.
C. All books with unusually high long-term sales are number one best sellers.
D. At least some books with unusually high long-term sales are not number one best sellers.
E. No number one best sellers have unusually high long-term sales.

Marcab · Accepted Answer

GMATBULL This was a cracker of a problem.
Anyways I tried my best and got D.

I also tried my best to explain through a chart that took me some time. In fact the question also took me some time and I just hope may that effort pays me off.
Abbreviations:- 
N.L.T.S- No Long Term Sales
L.T.S----Long Term Sales

gmatbull · Answer

I only got the motivation from Jp27 and Marcab...to draw out this diagram They provided the needed
drive.. Thanks to both of you guys.

Let X = No1 Best seller; Y= Major Literary Price Winners; Z=unusually High Long Term Sales
I think, its more like: ALL X are not Y, but all Y are Z. 
The relationship b/w X and Z is left open.

Either way, whether 1BS is a subset or shares some elements (or none) with unusual High LTS,
we know that condition  D  holds true.

From the diagram attached, I think one should be able to find the correct answer  D

Jp27 · Answer

this is dozy of problem. LSAT huh?

IMO D not B . What does the answer guide say?

2 main fact needs to be considered.
 NO  no1 best sellers (no1 BS) will win literary prizes (LP) i.e if the book won LP then this books cannot be no1 BS
 ALL  major literary prize winners will have unusually high long-term sales. i.e. if he has won LP then we for sure know it will have unusually long term sale.
In simpler terms No X are Y and All X and Z

A. No books with unusually high long-term sales are number one best sellers.
 this need not be true all the time; there can be books with unusually high long-term sales and can be also No1

B. At least some number one best sellers are not books with unusually high long-term sales.
 This need not be true because there ALL NO1 books can have long-term sales - its just that LP winner cannot be NO1

C. All books with unusually high long-term sales are number one best sellers.
 ALL itself is very extreme word. This cannot be true we know that if the Book has won LP then it cannot be no1

D. At least some books with unusually high long-term sales are not number one best sellers.
 this must be true because from the question we know that books that have won LP (i.e. some books) cannot be NO1 (and books with LP must have long term sales) so this can be safely inferred.

E. No number one best sellers have unusually high long-term sales.
 This need no be true all the time as there can be books that are NO1, that also has not won LP, can have long term sales.

Edited to correct a typo!

Cheers

Jp27 · Answer

hey--- what's teh answer for this question?

srinjoy28 · Answer

Let A - no.1 best seller; B- major literary prize winners; C- unusually high long term sales.
We are given that, "No A are B; All B are C"
So we can infer : A)No C are A--cannot be said--incorrect
B)Some A are not C----possible
C)All C are A-----not possible.
D)Some C are not A---possible.
E)No A are C ---cannot be said--incorrect.
So between B and D if we look closely, I find D is correct.
Hope this is the right option.

mohnish104 · Answer

What is the right answer. IMO E. Why wud u post a ques widout the ans?

sagarsir · Answer

this is dozy of problem. LSAT huh? IMO D not B . What does the answer guide -----> All who win major literary prize have long term sales. However there could be other (apart from major literary prize winners) books too who have long term sales. Thus, these books could possibly include ALL the number one best sellers. Hence B does not hold. Note: The key to solve these type of questions is to find exception -find a possibility that contradicts the option and eliminate. Kudos, if u like

AKG1593 · Answer

After taking too much time,chose D,just because it made some sense while others didn't!

Posted from my mobile device

MPRS22 · Answer

If Bestseller--> Not win

All winners__> high sales

Using contrapositive

win--> not a bestseller
but if I win I also have high sales

So if I have high sales, not bestseller

D

VerbalBot · Answer

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Book publishing executive: I am becoming increasingly convinced that

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