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# Of the books standing in a row on a shelf, an atlas is the

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Director
Status: No dream is too large, no dreamer is too small
Joined: 14 Jul 2010
Posts: 520
Of the books standing in a row on a shelf, an atlas is the  [#permalink]

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14 Jan 2012, 07:47
2
5
00:00

Difficulty:

15% (low)

Question Stats:

80% (01:21) correct 20% (01:31) wrong based on 152 sessions

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Of the books standing in a row on a shelf, an atlas is the 30th book from the left and the 33rd book from the right. If 2 books to the left of the atlas and 4 books to the right of the atlas are removed from the shelf, how many books will be left on the shelf?

A. 56
B. 57
C. 58
D. 61
E. 63

There are 29 books at the left of 30th book and 32 book at the right of 30th book
so total 29+32 + 1(30th book) = 62-6 (Removing books) = 56
Ans. A
Whether I am correct?

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Joined: 02 Sep 2009
Posts: 51229
Re: Of the books standing in a row on a shelf  [#permalink]

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14 Jan 2012, 07:56
Baten80 wrote:
Of the books standing in a row on a shelf, an atlas is the 30th book from the left and the 33rd book from the right. If 2 books to the left of the atlas and 4 books to the right of the atlas are removed from the shelf, how many books will be left on the shelf?

A. 56
B. 57
C. 58
D. 61
E. 63

There are 29 books at the left of 30th book and 32 book at the right of 30th book
so total 29+32 + 1(30th book) = 62-6 (Removing books) = 56
Ans. A
Whether I am correct?

100%. There are total of 30+33-1=62 books and 2+4=6 books are removed, thus 62-6=56 books are left.

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Director
Status: No dream is too large, no dreamer is too small
Joined: 14 Jul 2010
Posts: 520
Re: Of the books standing in a row on a shelf  [#permalink]

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16 Jan 2012, 10:23
Senior SC Moderator
Joined: 22 May 2016
Posts: 2216
Of the books standing in a row on a shelf, an atlas is the  [#permalink]

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30 Jul 2017, 16:26
Baten80 wrote:
Of the books standing in a row on a shelf, an atlas is the 30th book from the left and the 33rd book from the right. If 2 books to the left of the atlas and 4 books to the right of the atlas are removed from the shelf, how many books will be left on the shelf?

A. 56
B. 57
C. 58
D. 61
E. 63

There are 29 books at the left of 30th book and 32 book at the right of 30th book
so total 29+32 + 1(30th book) = 62-6 (Removing books) = 56
Ans. A
Whether I am correct?

On the shelf, the atlas is the 30th book from the left.

1,2,___________29,[30]
There are 29
to the left
of [atlas]

The atlas is (also) the 33rd book from the right

******************[33],32,31_______________2,1
There are 32
books to the right
of [atlas]

There is 1 atlas.

29 + 32 + 1 = 62 books on the shelf. (2 + 4) = 6 books are removed. How many left? 62 - 6 = 56.

For the number (quantity) of books on the shelf, it doesn't matter from where they are taken. There are 62 books and 6 go away. If we were asked about the new n$$^{th}$$ place the atlas held from the left or right side or both, then which side they came from, and how many were taken, would matter.

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Joined: 09 Sep 2013
Posts: 9182
Re: Of the books standing in a row on a shelf, an atlas is the  [#permalink]

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12 Aug 2018, 16:27
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

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Re: Of the books standing in a row on a shelf, an atlas is the &nbs [#permalink] 12 Aug 2018, 16:27
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