Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack
GMAT Club

 It is currently 29 Mar 2017, 18:13

### 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

# If L <> 0 , is an integer? a. (K^2) / (L^2) is an

Author Message
TAGS:

### Hide Tags

Manager
Joined: 27 Dec 2009
Posts: 169
Followers: 2

Kudos [?]: 97 [0], given: 3

If L <> 0 , is an integer? a. (K^2) / (L^2) is an [#permalink]

### Show Tags

09 May 2010, 03:28
00:00

Difficulty:

(N/A)

Question Stats:

100% (02:59) correct 0% (00:00) wrong based on 11 sessions

### HideShow timer Statistics

If L <> 0 , is [(18 * K ) / L ] an integer?

a. (K^2) / (L^2) is an integer.
b. K - L = L
Math Expert
Joined: 02 Sep 2009
Posts: 37691
Followers: 7416

Kudos [?]: 99956 [0], given: 11127

### Show Tags

09 May 2010, 04:10
msand wrote:
If L does not equal to 0, is (18*K)/L an integer?

(1) K^2/L^2 is an integer.
(2) K-L=L

If $$l\neq{0}$$ is $$\frac{18k}{l}=integer$$?

(1) $$\frac{k^2}{l^2}=integer$$. $$k=4$$ and $$l=2$$ - answer YES but $$k=\sqrt{6}$$ and $$l=\sqrt{2}$$ - answer NO. Not sufficient.

(2) $$k=2l$$ --> $$\frac{18k}{l}=\frac{18*2l}{l}=36=integer$$. Sufficient.

_________________
Manager
Joined: 16 Feb 2010
Posts: 187
Followers: 2

Kudos [?]: 31 [0], given: 15

### Show Tags

16 May 2010, 12:32
according to statement A K^2/L^2 is integer but that doesn't mean that K & L are integer; square of 1.732 is 3 which is an integer but 1.732 itself is not a integer. hence statement A - i nsufficient

statment B - k=2l sufficeint we get a integer from it
so B must be the answer.
Re: DS integer   [#permalink] 16 May 2010, 12:32
Similar topics Replies Last post
Similar
Topics:
Are l1 and l2 parallel? 1 28 Mar 2017, 13:04
1 If –5 < k < 5, is k > 2 ? (1) (k – 1)(k – 5)(k – 2) < 0 (2) k – 1 > 0 3 14 Mar 2017, 03:05
4 Is k² + k – 2 > 0? 8 23 Jul 2015, 03:18
9 Line L1 has a slope A and Line L2 has the slope B.Is A>B? 7 19 Oct 2012, 03:05
If 8 < k < 8, is k < 2 ? S1 K^2 - 7k - 18 > 0 S2 4 21 Dec 2010, 16:33
Display posts from previous: Sort by
{"found_math": true, "script_math_tex": 0, "script_math_asciimath": 0, "math_annotations": 0, "math_alttext": 0, "mathml": 0, "mathjax_tag": 0, "mathjax_inline_tex": 0, "mathjax_display_tex": 1, "mathjax_asciimath": 0, "img_math": 0, "codecogs_latex": 0, "wp_latex": 0, "mimetex.cgi": 0, "/images/math/codecogs": 0, "mathtex.cgi": 0, "katex": 0, "math-container": 0, "wp-katex-eq": 0, "align": 0, "equation": 0, "x-ck12": 0, "texerror": 0}