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M70-12

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Joined: 02 Sep 2009
Posts: 49206
M70-12  [#permalink]

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New post 03 Sep 2018, 03:44
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

82% (00:48) correct 18% (00:09) wrong based on 11 sessions

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Image
In the figure above, if \(x < y < z\), which of the following must be true?


A. \(BC < AB\)
B. \(AC < BC\)
C. \(BC > AB\)
D. \(AC > AB\)
E. None of the above must be true.

_________________

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Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

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.


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Math Expert
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Joined: 02 Sep 2009
Posts: 49206
Re M70-12  [#permalink]

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New post 03 Sep 2018, 03:44
Official Solution:

Image
In the figure above, if \(x < y < z\), which of the following must be true?


A. \(BC < AB\)
B. \(AC < BC\)
C. \(BC > AB\)
D. \(AC > AB\)
E. None of the above must be true.


We’ll go for LOGICAL because there is a specific logical rule we can use.

We know that in a triangle, the shortest/longest/middle side is opposite the smallest/largest/mid-sized angle, respectively. So, \(BC < AC < AB\). (A) must be true.


Answer: A
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

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?
Extra-hard Quant Tests with Brilliant Analytics

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Re: M70-12  [#permalink]

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New post 07 Sep 2018, 06:58
Hi, Mustn't all be true except (C)?
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Re: M70-12  [#permalink]

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New post 07 Sep 2018, 19:19
1
Bunuel wrote:
Official Solution:

Image
In the figure above, if \(x < y < z\), which of the following must be true?


A. \(BC < AB\)
B. \(AC > BC\)
C. \(BC > AB\)
D. \(AC < AB\)
E. None of the above must be true.


We’ll go for LOGICAL because there is a specific logical rule we can use.

We know that in a triangle, the shortest/longest/middle side is opposite the smallest/largest/mid-sized angle, respectively. So, \(BC < AC < AB\). (A) must be true.


Answer: A


Hey Bunuel

Pl check Both option A) and B) are correct.
_________________

It seems Kudos button not working correctly with all my posts...

Please check if it is working with this post......

is it?....

Anyways...Thanks for trying :cool:

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49206
Re: M70-12  [#permalink]

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New post 08 Sep 2018, 01:15
Harshgmat wrote:
Bunuel wrote:
Official Solution:

Image
In the figure above, if \(x < y < z\), which of the following must be true?


A. \(BC < AB\)
B. \(AC > BC\)
C. \(BC > AB\)
D. \(AC < AB\)
E. None of the above must be true.


We’ll go for LOGICAL because there is a specific logical rule we can use.

We know that in a triangle, the shortest/longest/middle side is opposite the smallest/largest/mid-sized angle, respectively. So, \(BC < AC < AB\). (A) must be true.


Answer: A


Hey Bunuel

Pl check Both option A) and B) are correct.


Edited. Thank you.
_________________

New to the Math Forum?
Please read this: Ultimate GMAT Quantitative Megathread | All You Need for Quant | PLEASE READ AND FOLLOW: 12 Rules for Posting!!!

Resources:
GMAT Math Book | Triangles | Polygons | Coordinate Geometry | Factorials | Circles | Number Theory | Remainders; 8. Overlapping Sets | PDF of Math Book; 10. Remainders | GMAT Prep Software Analysis | SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) | Tricky questions from previous years.

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?
Extra-hard Quant Tests with Brilliant Analytics

Re: M70-12 &nbs [#permalink] 08 Sep 2018, 01:15
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