Figure is attached. In the figure above if x and y each are : GMAT Data Sufficiency (DS)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 24 Jan 2017, 04:14

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

Figure is attached. In the figure above if x and y each are

Author Message
TAGS:

Hide Tags

Intern
Joined: 04 Dec 2009
Posts: 22
Followers: 0

Kudos [?]: 34 [1] , given: 13

Figure is attached. In the figure above if x and y each are [#permalink]

Show Tags

26 Jun 2010, 02:26
1
KUDOS
1
This post was
BOOKMARKED
00:00

Difficulty:

15% (low)

Question Stats:

90% (01:55) correct 10% (00:04) wrong based on 31 sessions

HideShow timer Statistics

Figure is attached.

In the figure above if x and y each are less than 90 and PS|| QR ,is the length of segment PQ less than the length of segment SR?

(1) x>y
(2) x+y > 90
[Reveal] Spoiler: OA

Attachments

Parallel Lines.JPG [ 93.55 KiB | Viewed 4312 times ]

Senior Manager
Joined: 13 Dec 2009
Posts: 263
Followers: 10

Kudos [?]: 184 [1] , given: 13

Re: Need help on this Data sufficiency problem on Parallel Lines [#permalink]

Show Tags

26 Jun 2010, 04:17
1
KUDOS
gautamsubrahmanyam wrote:
Figure is attached.

In the figure above if x and y each are less than 90 and PS|| QR ,is the length of segment PQ less than the length of segment SR?

(1) x>y
(2) x+y > 90

Since PS||QR the shortest distance between the lines PS and QR is the perpendicular between the lines. Whichever segment PQ or SR is closer to becoming a perpendicular is the shorter of the two segments. For this to happen the angles x or y must get maximized towards 90 degrees for their length to become minimum.

Statement 1
x > y
this implies that x is closer to 90 degrees than y. Hence PQ is closer to being perpendicular and thus we can say that PQ is shorter than SR. Sufficient.

Statement 2
x + y > 90
Does not tell us the relation between x and y. Here x could be greater than y (x = 80, y= 70) and satisfy the inequality, or x could be lesser than y (x = 70, y = 80) and still satisfy the inequality. Hence we cannot say which angle is closer to 90 degrees so we cannot determine which line is closer to becoming perpendicular and thus shorter. Not sufficient.
_________________

My debrief: done-and-dusted-730-q49-v40

Kaplan GMAT Instructor
Joined: 21 Jun 2010
Posts: 75
Location: Toronto
Followers: 29

Kudos [?]: 164 [0], given: 2

Re: Need help on this Data sufficiency problem on Parallel Lines [#permalink]

Show Tags

29 Jun 2010, 18:16
Hi,

remember that the shortest distance between any two points is a straight line. So, the question is basically asking you whether the statements will tell you which line travels more "perpendicularly" from bottom to top (or top to bottom).
CEO
Status: Nothing comes easy: neither do I want.
Joined: 12 Oct 2009
Posts: 2795
Location: Malaysia
Concentration: Technology, Entrepreneurship
Schools: ISB '15 (M)
GMAT 1: 670 Q49 V31
GMAT 2: 710 Q50 V35
Followers: 226

Kudos [?]: 1624 [0], given: 235

Re: Need help on this Data sufficiency problem on Parallel Lines [#permalink]

Show Tags

17 Oct 2010, 01:03
These type of DS questions are real time savers.

The minimum distance between a point and a line can be calculated by drawing a perpendicular passing through the given point to the line.

If you decrease the angle the distance increased. Since x>y => PQ< RS

Thus A. B is irrelevant.

What if it was not stated x and y both less than 90?? Then the answer would have been E.

Very nice question.
_________________

Fight for your dreams :For all those who fear from Verbal- lets give it a fight

Money Saved is the Money Earned

Jo Bole So Nihaal , Sat Shri Akaal

GMAT Club Premium Membership - big benefits and savings

Gmat test review :
http://gmatclub.com/forum/670-to-710-a-long-journey-without-destination-still-happy-141642.html

Manager
Joined: 19 Aug 2010
Posts: 76
Followers: 3

Kudos [?]: 25 [0], given: 2

Re: Need help on this Data sufficiency problem on Parallel Lines [#permalink]

Show Tags

17 Oct 2010, 01:11
Can somebody tell me if that is a 700-level question?
Joined: 19 Feb 2010
Posts: 401
Followers: 22

Kudos [?]: 174 [0], given: 76

Re: Need help on this Data sufficiency problem on Parallel Lines [#permalink]

Show Tags

17 Oct 2010, 02:06
medanova wrote:
Can somebody tell me if that is a 700-level question?

I don't think so. I'd say it's a 600-700 level question.
I'm not an expert but I didn't find this question difficult, when I don't seem to solve correctly most of the 700-level questions.
Re: Need help on this Data sufficiency problem on Parallel Lines   [#permalink] 17 Oct 2010, 02:06
Similar topics Replies Last post
Similar
Topics:
38 What is the value of x + y in the figure above? 4 26 Dec 2012, 04:18
33 In the figure above, what is the value of x + y ? 24 18 Dec 2012, 05:08
2 In the figure above, what is the value of x + y ? 4 28 Dec 2011, 06:48
19 What is the value of x+y in the figure above? 5 08 Mar 2011, 13:16
16 In the figure above, if x and y are each less than 90 and PS 7 22 Aug 2010, 18:03
Display posts from previous: Sort by