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How many books did the author write?

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

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New post 31 Oct 2018, 09:52
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

92% (00:38) correct 8% (00:20) wrong based on 25 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, 10:04
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?   [#permalink] 31 Oct 2018, 10:04
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How many books did the author write?

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