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

It is currently 13 Jul 2014, 09:31

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

In the diagram above, ∠J = ∠M, ∠K = ∠N,

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Expert Post
Magoosh GMAT Instructor
User avatar
Joined: 28 Dec 2011
Posts: 1918
Followers: 461

Kudos [?]: 1791 [0], given: 29

In the diagram above, ∠J = ∠M, ∠K = ∠N, [#permalink] New post 08 Mar 2013, 13:35
Expert's post
00:00
A
B
C
D
E

Difficulty:

  25% (low)

Question Stats:

78% (01:51) correct 21% (00:59) wrong based on 73 sessions
Attachment:
two similar triangles.JPG
two similar triangles.JPG [ 20.78 KiB | Viewed 846 times ]

In the diagram above, ∠J = ∠M, ∠K = ∠N, and side lengths are as shown. Given this, y must equal
(A) r/sx
(B) x/sr
(C) sr/x
(D) sx/r
(E) rx/s


For a review of everything you need to know about similar geometric figures for the GMAT, as well as a complete solution to this question, see this blog:
http://magoosh.com/gmat/2013/gmat-math-similar-shapes/
[Reveal] Spoiler: OA

_________________

Mike McGarry
Magoosh Test Prep

Image

Image

Kaplan GMAT Prep Discount CodesKnewton GMAT Discount CodesManhattan GMAT Discount Codes
Senior Manager
Senior Manager
avatar
Joined: 15 Jun 2010
Posts: 363
Schools: IE'14, ISB'14, Kellogg'15
WE 1: 7 Yrs in Automobile (Commercial Vehicle industry)
Followers: 6

Kudos [?]: 132 [0], given: 50

GMAT Tests User Reviews Badge
Re: In the diagram above, ∠J = ∠M, ∠K = ∠N, [#permalink] New post 09 Mar 2013, 13:36
Similar Triangle
Y/x = s/r
Hence Y = sx/r
Choice D
_________________

Regards
SD
-----------------------------
Press Kudos if you like my post.
Debrief 610-540-580-710(Long Journey): from-600-540-580-710-finally-achieved-in-4th-attempt-142456.html

Director
Director
User avatar
Status: 1,750 Q's attempted and counting
Affiliations: University of Florida
Joined: 09 Jul 2013
Posts: 513
Location: United States (FL)
Schools: UFL (A)
GMAT 1: 600 Q45 V29
GMAT 2: 590 Q35 V35
GMAT 3: 570 Q42 V28
GMAT 4: 610 Q44 V30
GPA: 3.45
WE: Accounting (Accounting)
Followers: 18

Kudos [?]: 219 [0], given: 629

Re: In the diagram above, ∠J = ∠M, ∠K = ∠N, [#permalink] New post 27 Oct 2013, 20:09
I understood that the triangles were similar but wasn't sure how that was going to help me get the answer.

I plugged some numbers and derived the answer for y in my hypothetical situation

I said r= 5 ,s = 10, x= 10. I figured the ratio of the lengths of the two sides would hold since they are similar triangle.

So my equation looked like this.
\frac{r}{s}= \frac{5}{10} and \frac{x}{y}=\frac{10}{y}

With this simple equation y=20. So i backed solved to get to the equation.

\frac{r}{s}=\frac{1}{2}and y=2*x or 20=2*10. Therefore to get 20 I had to take the reciprocal of \frac{r}{s} and multiply that by x.

So my answer would be\frac{sx}{r} or choice D.
_________________

Got Kudos? :) Tis better to give than receive | ANALYSIS OF MOST DIFFICULT QUESTION TYPES
Need motivation? check out this video or this one | "We are what we repeatedly do. Excellence, then, is not an act, but a habit." - Aristotle
100 HARDEST CR QUESTIONS | 100 HARDEST SC QUESTIONS | 100 HARDEST PS QUESTIONS| 25 HARDEST QUESTIONS | 225 RC PASSAGES W/ TIMER!!!
PS QUESTION DIRECTORY|DS QUESTION DIRECTORY | SC QUESTION DIRECTORY | CR QUESTION DIRECTORY | RC QUESTION DIRECTORY

BEST OVERALL QUANT BOOK FOR THE MONEY | MAXIMIZE YOUR STUDY TIME

Re: In the diagram above, ∠J = ∠M, ∠K = ∠N,   [#permalink] 27 Oct 2013, 20:09
    Similar topics Author Replies Last post
Similar
Topics:
Experts publish their posts in the topic If j, k, m, n, and p are consecutive positive integers Gnpth 1 07 Jun 2014, 06:54
1 In the list above, k, m, and n are three distinct positive i daviesj 3 14 Jan 2013, 05:25
1 j, k, and m metallicafan 6 14 Dec 2011, 08:31
Is the range of the set of numbers {j, k, m, n, p} greater guygmat 4 20 Jun 2011, 19:48
(m-j) = 2(m-k) ; m > k ; m > j ; what is the average of m,j grad_mba 3 24 Mar 2007, 17:59
Display posts from previous: Sort by

In the diagram above, ∠J = ∠M, ∠K = ∠N,

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.