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

It is currently 22 Oct 2014, 06:19

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 Triangle ABC, if AB = x, BC = y, and AC = x + y, which of

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Expert Post
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 23371
Followers: 3607

Kudos [?]: 28764 [0], given: 2846

Re: In Triangle ABC, if AB = x, BC = y, and AC = x + y, which of [#permalink] New post 08 Jul 2012, 05:44
Expert's post
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

88% (01:25) correct 13% (00:00) wrong based on 16 sessions
metallicafan wrote:
In Triangle ABC, if AB = x, BC = y, and AC = x + y, which of the three angles of Triangle ABC has the least degree measure?

(1) x = y + 1
(2) y = 4

I think there is a typo in this question.
We know that a rule in triangles theory is:
|Side 2 - Side 3| < Side 1 < Side 2 + Side 3

So, how can AC (x+y) be equal to AB (x) and BC (y)?

Please, confirm.

Source: http://www.gmathacks.com


You are right, the question is flawed. They just took and incorrectly rephrased question from OG, which is:

In Δ PQR, if PQ = x, QR = x + 2, and PR = y, which of the three angles of Δ PQR has the greatest degree measure?

Important properties of a triangle.
The shortest side is always opposite the smallest angle.
The longest side is always opposite the largest angle.

The length of any side of a triangle must be larger than the positive difference of the other two sides, but smaller than the sum of the other two sides.

(1) y = x + 3 --> PR is the longest side, hence opposite the largest angle PQR. Sufficient.
(2) x = 2 --> PQ=2 and QR=4 --> 2<PR<6. So, we cannot determine which side is the longest QR or PR. Not sufficient.

Answer: A.
[Reveal] Spoiler: OA

_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

COLLECTION OF QUESTIONS:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


What are GMAT Club Tests?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Kaplan Promo CodeKnewton GMAT Discount CodesGMAT Pill GMAT Discount Codes
Re: In Triangle ABC, if AB = x, BC = y, and AC = x + y, which of   [#permalink] 08 Jul 2012, 05:44
    Similar topics Author Replies Last post
Similar
Topics:
5 Experts publish their posts in the topic The side lengths of triangle ABC are such that AC > BC > AB. swarman 8 11 Mar 2013, 14:13
1 In triangle ABC, point X is the midpoint of side AC and arjtryarjtry 12 01 Aug 2008, 03:27
AB BC and AC represent sides of a triangle ABC Is triangle Ozmba 6 09 Nov 2007, 08:12
In triangle ABC, point X is the midpoint of side AC and ricokevin 5 26 Apr 2007, 05:51
Triangle ABC has three angles, x, y and z. Is ABC isosceles? Rayn 9 16 Oct 2006, 10:54
Display posts from previous: Sort by

In Triangle ABC, if AB = x, BC = y, and AC = x + y, which of

  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®.