Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 04 May 2015, 04:43

### GMAT Club Daily Prep

#### Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# Quant Review DS 107 Question?

Author Message
TAGS:
Intern
Joined: 12 Sep 2010
Posts: 3
Followers: 0

Kudos [?]: 1 [0], given: 2

Quant Review DS 107 Question? [#permalink]  01 Jun 2011, 14:26
00:00

Difficulty:

45% (medium)

Question Stats:

63% (01:48) correct 37% (00:35) wrong based on 19 sessions

I have a question about statement 2.....

If n is an integer between 2 and 100 and if n is also the square of an integer, what is the value of n?

1) n is even

2) The cube root of n is an integer

1) Not sufficient because n could be 4, 16, 36, 64, etc.

2) Doesn't between 2 and 100 mean 3 to 99? (I thought between means do not include the end points). Statement 2 says the cube of root n is an integer. Woudln't the cube root of 27 be included? as well as the cube root of 64?

The OG guide says there is only one such value of n between 2 and 100, which is 64.

[Reveal] Spoiler: OA
Math Forum Moderator
Joined: 20 Dec 2010
Posts: 2035
Followers: 135

Kudos [?]: 1107 [1] , given: 376

Re: Quant Review DS 107 Question? [#permalink]  01 Jun 2011, 15:06
1
KUDOS
KraZZyiE wrote:

I have a question about statement 2.....

If n is an integer between 2 and 100 and if n is also the square of an integer, what is the value of n?

1) n is even

2) The cube root of n is an integer

1) Not sufficient because n could be 4, 16, 36, 64, etc.

2) Doesn't between 2 and 100 mean 3 to 99? (I thought between means do not include the end points). Statement 2 says the cube of root n is an integer. Woudln't the cube root of 27 be included? as well as the cube root of 64?

The OG guide says there is only one such value of n between 2 and 100, which is 64.

The question stem says that the "n" is square of an integer; 27 is not a square of any integer. Leaves us with just 64, which is 8^2.
_________________
Director
Joined: 01 Feb 2011
Posts: 763
Followers: 14

Kudos [?]: 68 [1] , given: 42

Re: Quant Review DS 107 Question? [#permalink]  01 Jun 2011, 15:49
1
KUDOS
possibilities 4 9 16 25 36 49 64 81

1. Not sufficient

4 or 16 or 36....

2. Sufficient

as 64 is the only number is the above list thats also a cube of an integer.

Intern
Joined: 12 Sep 2010
Posts: 3
Followers: 0

Kudos [?]: 1 [0], given: 2

Re: Quant Review DS 107 Question? [#permalink]  02 Jun 2011, 13:53
thanks. great explanation
Intern
Status: arrogance and ignorance are infectious, thanks god that (true) laughing is too
Joined: 15 Jun 2011
Posts: 9
Location: Vienna
Followers: 1

Kudos [?]: 0 [0], given: 3

Re: Quant Review DS 107 Question? [#permalink]  16 Aug 2011, 04:49
thanks for the explanation
according to the quant review and the gmat club error log it is question #110 in the DS section, quant review
Senior Manager
Joined: 15 Feb 2011
Posts: 263
Followers: 4

Kudos [?]: 42 [0], given: 9

Re: Quant Review DS 107 Question? [#permalink]  16 Aug 2011, 11:06
wow..i got it rite...B it is
Re: Quant Review DS 107 Question?   [#permalink] 16 Aug 2011, 11:06
Similar topics Replies Last post
Similar
Topics:
3 107 Assumption Questions With Answers 0 28 Oct 2013, 10:09
1 How to review quant question effectively? 1 21 Dec 2012, 21:29
2 Is x^2 greater than x? 1) x^2 is greater than 1 2) x is 13 31 Oct 2010, 16:39
Green OG (quant review) DS question 1 07 Jun 2007, 22:37
Official Guide Quant Review - DS Q113 3 26 Oct 2006, 03:27
Display posts from previous: Sort by