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How many books does Ricardo have? (1) If Ricardo had 15 fewer books,

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How many books does Ricardo have? (1) If Ricardo had 15 fewer books,  [#permalink]

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New post 03 Oct 2018, 02:55
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A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

93% (00:37) correct 7% (00:54) wrong based on 61 sessions

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Re: How many books does Ricardo have? (1) If Ricardo had 15 fewer books,  [#permalink]

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New post 03 Oct 2018, 03:06
Bunuel wrote:
How many books does Ricardo have?

(1) If Ricardo had 15 fewer books, he would have only half as many as he actually has.

(2) Ricardo has twice as many fiction books as nonfiction books.


Question: How many books does Ricardo have?

Statement 1: R-15 = (1/2)R

i.e. R = 30
SUFFICIENT

Statement 2: Ricardo has twice as many fiction books as nonfiction books
NOT SUFFICIENT

Answer: Option A
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Re: How many books does Ricardo have? (1) If Ricardo had 15 fewer books,  [#permalink]

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New post 03 Oct 2018, 03:24
(1) If Ricardo had 15 fewer books, he would have only half as many as he actually has.

15 books is half of the total. Therefore, Ricardo has 30 books. SUFFICIENT

(2) Ricardo has twice as many fiction books as nonfiction books.

The number of books Ricardo has will be a multiple of 3, but any multiple 3 could be the answer. INSUFFICIENT

Answer is A
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Re: How many books does Ricardo have? (1) If Ricardo had 15 fewer books,   [#permalink] 03 Oct 2018, 03:24
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How many books does Ricardo have? (1) If Ricardo had 15 fewer books,

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