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Percentage

by chuotsmart » Wed Jun 20, 2012 1:46 pm
I'd appreciate any help on this problem! Thanks a bunch!

If each customer purchases exactly 1 copy of the book, did the book sell at least 500 copies overall on the online book selling portal XYZ?

(1) The portal XYZ found that after selling 5 copies on a particular day, the percentage of customers who ultimately buy the book after viewing it increased from 46% to 47%.

(2) On a particular day, the portal XYZ found that 10 consecutive customers who viewed the item purchase some other book and the percentage dipped from 47% to 46%.
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by \'manpreet singh » Wed Jun 20, 2012 11:57 pm
The both statements individually cannot explain the question that total no. of copies sold is 500 or more as we do not know the total number of people viewing the book..
so option A,B,D are wrong

Now combine two statements:
Even after combining both statements we do know how many people viewed the book online,so we cannot make use of the info provided in the 2 statements.

Hence answer is E (more info required)
Correct me if i am wrong...
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