RatneshS wrote:

VeritasPrepKarishma wrote:

Karishma I have a question here with regards to D

Suppose if excerpts are not published--out of 100 books we have sales for only 10

if published--60 are the viewers and among 60, 31 found out a substitute while 29 are still going to buy the book

'so if no excerpt----sales is 10

with excerpt---sales= 10+29=39,which means sales have increased even after undermining A

When we talk about "number of people for whom seeing an excerpt of a book in a magazine provides an adequate substitute", we are talking about the people who wanted to read the book initially but after seeing the excerpt, decided that it is sufficient. So we are saying that the reduction in the number of initially interested people should not be more than the the number of newly interested people.

Out of 100, say there are 30 people who would like to read the book.

No excerpt, book published. Sale = 30

Excerpt published before the book published - stimulated 20 more people to buy the book. But what if of the 30 people who wanted to read the book, 25 now feel that the excerpt was sufficient and enough of a substitute for the whole book. Now only 20+5 = 25 people buy the book.

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Karishma

Veritas Prep GMAT Instructor

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