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How many books did the author write?

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Joined: 27 Oct 2017
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Location: India
Concentration: International Business, General Management
GPA: 3.64
WE: Business Development (Energy and Utilities)
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How many books did the author write?  [#permalink]

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New post 31 Oct 2018, 08:52
00:00
A
B
C
D
E

Difficulty:

  35% (medium)

Question Stats:

90% (00:32) correct 10% (00:14) wrong based on 10 sessions

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How many books did the author write?

(1) Of the books the author wrote, 3 were bestsellers.

(2) Of the books the author wrote, 80 percent were not best-sellers.

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Re: How many books did the author write?  [#permalink]

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New post 31 Oct 2018, 09:04
1) insufficient - total is required or any other data

2) this is also insufficient

From 1 and 2
Let total be x
Bestseller- 3
20% bestseller
->20/100*x = 3
-> clearly suff
Ans- (C)

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Re: How many books did the author write? &nbs [#permalink] 31 Oct 2018, 09:04
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How many books did the author write?

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