Author 
Message 
TAGS:

Hide Tags

Intern
Joined: 21 Oct 2011
Posts: 10

If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
25 Aug 2012, 02:49
2
This post received KUDOS
6
This post was BOOKMARKED
Question Stats:
60% (02:16) correct
40% (01:22) wrong based on 328 sessions
HideShow timer Statistics
Attachment:
Number Line.png [ 8.29 KiB  Viewed 10763 times ]
If a, b, c are three numbers on the number line shown above , is c between a and b. (1) b < 0 (2) a  b > c
Official Answer and Stats are available only to registered users. Register/ Login.
Last edited by Bunuel on 21 Jan 2013, 03:27, edited 3 times in total.
Added the diagram.



Math Expert
Joined: 02 Sep 2009
Posts: 39667

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
25 Aug 2012, 03:27
5
This post received KUDOS
Expert's post
4
This post was BOOKMARKED
If a, b, c are three numbers on the number line shown above , is c between a and b.Probably the best way to solve this problem is to pick some smart numbers. Notice that from the diagram we have that \(a<b\). (1) b <0. Clearly insufficient since we know nothing about c. (2) ab>c. If \(a=10\) and \(b=1\), then \(10(1)=9>c\). Now, is \(c=9.5\), then the answer is YES but if \(c=100\), then the answer is NO. Not sufficient. (1)+(2) Example from (2) is still valid, so even when we consider the two statements together we cannot answer the question. Not sufficient. Answer: E.
_________________
New to the Math Forum? Please read this: 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? Extrahard Quant Tests with Brilliant Analytics



Director
Joined: 22 Mar 2011
Posts: 612
WE: Science (Education)

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
25 Aug 2012, 04:18
3
This post received KUDOS
1
This post was BOOKMARKED
yogeshwar007 wrote: Attachment: The attachment Number Line.png is no longer available If a, b, c are three numbers on the number line shown above , is c between a and b. (1) b <0 (2) ab>c For (1) and (2): From (2), we know that \(0>ab>c\) and from (1) that \(b<0.\) Place \(a,b\) and \(ab\) on the number line (see the attached drawing). You can see that \(c\) can be between \(a\) and \(ab\) (which means that \(c\) is between \(a\) and \(b\)) or on the left of \(a\) (meaning \(c\) is not between and \(b\)). Not sufficient. Answer E.
Attachments
NumberLine.jpg [ 6.58 KiB  Viewed 9475 times ]
_________________
PhD in Applied Mathematics Love GMAT Quant questions and running.



CEO
Status: Nothing comes easy: neither do I want.
Joined: 12 Oct 2009
Posts: 2783
Location: Malaysia
Concentration: Technology, Entrepreneurship
GMAT 1: 670 Q49 V31 GMAT 2: 710 Q50 V35

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
19 Oct 2012, 02:08
Bunuel wrote: If a, b, c are three numbers on the number line shown above , is c between a and b.Probably the best way to solve this problem is to pick some smart numbers. Notice that from the diagram we have that \(a<b\). (1) b <0. Clearly insufficient since we know nothing about c. (2) ab>c. If \(a=10\) and \(b=1\), then \(10(1)=9>c\). Now, is \(c=9.5\), then the answer is YES but if \(c=100\), then the answer is NO. Not sufficient. (1)+(2) Example from (2) is still valid, so even when we consider the two statements together we cannot answer the question. Not sufficient. Answer: E. Bunuel I also interpret that from diagram a<b but in the official explanation they took a=0 and b =2 isnt it strange?
Attachments
a.jpg [ 52.14 KiB  Viewed 9021 times ]
_________________
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
Support GMAT Club by putting a GMAT Club badge on your blog/Facebook
GMAT Club Premium Membership  big benefits and savings
Gmat test review : http://gmatclub.com/forum/670to710alongjourneywithoutdestinationstillhappy141642.html



Intern
Joined: 01 Jun 2012
Posts: 25
Concentration: Entrepreneurship, Social Entrepreneurship
WE: Information Technology (Consulting)

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
19 Oct 2012, 10:44
Hi Gurpreet, in your screenshot I dont see the line segment where points 'A' and 'B' are marked like in the original question. In the original question the line segment is given with the points positioned in it. So that makes a difference. These questions are similar, not identical.



CEO
Status: Nothing comes easy: neither do I want.
Joined: 12 Oct 2009
Posts: 2783
Location: Malaysia
Concentration: Technology, Entrepreneurship
GMAT 1: 670 Q49 V31 GMAT 2: 710 Q50 V35

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
19 Oct 2012, 11:44
1022lapog wrote: Hi Gurpreet, in your screenshot I dont see the line segment where points 'A' and 'B' are marked like in the original question. In the original question the line segment is given with the points positioned in it. So that makes a difference. These questions are similar, not identical. I have not posted the real question. I have just posted the explanation. And the question is exactly same.
_________________
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
Support GMAT Club by putting a GMAT Club badge on your blog/Facebook
GMAT Club Premium Membership  big benefits and savings
Gmat test review : http://gmatclub.com/forum/670to710alongjourneywithoutdestinationstillhappy141642.html



Math Expert
Joined: 02 Sep 2009
Posts: 39667

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
23 Oct 2012, 07:07
gurpreetsingh wrote: Bunuel wrote: If a, b, c are three numbers on the number line shown above , is c between a and b.Probably the best way to solve this problem is to pick some smart numbers. Notice that from the diagram we have that \(a<b\). (1) b <0. Clearly insufficient since we know nothing about c. (2) ab>c. If \(a=10\) and \(b=1\), then \(10(1)=9>c\). Now, is \(c=9.5\), then the answer is YES but if \(c=100\), then the answer is NO. Not sufficient. (1)+(2) Example from (2) is still valid, so even when we consider the two statements together we cannot answer the question. Not sufficient. Answer: E. Bunuel I also interpret that from diagram a<b but in the official explanation they took a=0 and b =2 isnt it strange? Taking into consideration the diagram in the question, it's not strange it's just wrong.
_________________
New to the Math Forum? Please read this: 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? Extrahard Quant Tests with Brilliant Analytics



Director
Joined: 29 Nov 2012
Posts: 878

if a,b and c are three numbers on the number line shown abov [#permalink]
Show Tags
20 Jan 2013, 20:58
<ab> if a,b and c are three numbers on the number line shown above, is C between a and b? 1) b<0 2) ab>c
_________________
Click +1 Kudos if my post helped...
Amazing Free video explanation for all Quant questions from OG 13 and much more http://www.gmatquantum.com/og13th/
GMAT Prep software What if scenarios http://gmatclub.com/forum/gmatprepsoftwareanalysisandwhatifscenarios146146.html



Moderator
Joined: 02 Jul 2012
Posts: 1223
Location: India
Concentration: Strategy
GPA: 3.8
WE: Engineering (Energy and Utilities)

Re: if a,b and c are three numbers on the number line shown abov [#permalink]
Show Tags
20 Jan 2013, 22:46
1
This post received KUDOS
1
This post was BOOKMARKED
fozzzy wrote: <ab>
if a,b and c are three numbers on the number line shown above, is C between a and b?
1) b<0 2) ab>c Answer is E.
Attachments
untitled.JPG [ 12.66 KiB  Viewed 8496 times ]
_________________
Did you find this post helpful?... Please let me know through the Kudos button.
Thanks To The Almighty  My GMAT Debrief
GMAT Reading Comprehension: 7 Most Common Passage Types



Math Expert
Joined: 02 Sep 2009
Posts: 39667

Re: if a,b and c are three numbers on the number line shown abov [#permalink]
Show Tags
21 Jan 2013, 03:29



Director
Joined: 29 Nov 2012
Posts: 878

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
21 Jan 2013, 03:49
Any tips on how to pick smart numbers for this question?
_________________
Click +1 Kudos if my post helped...
Amazing Free video explanation for all Quant questions from OG 13 and much more http://www.gmatquantum.com/og13th/
GMAT Prep software What if scenarios http://gmatclub.com/forum/gmatprepsoftwareanalysisandwhatifscenarios146146.html



Current Student
Joined: 06 Sep 2013
Posts: 1997
Concentration: Finance

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
18 Apr 2014, 07:52
I have a question here if I may Should we assume that a,b are given in order, that is as shown in the number line? I understood that one should trust the order of points shown either on number lines or graphs according to GMAT Please confirm Thanks! Cheers J



Math Expert
Joined: 02 Sep 2009
Posts: 39667

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
18 Apr 2014, 10:12



Current Student
Joined: 06 Sep 2013
Posts: 1997
Concentration: Finance

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
08 May 2014, 06:34
I did it this way Note: One can trust the relative position of graphs/lines in DS as per OG. Statement 1: b<0. Clearly Insufficient Statement 2: ab>c > a>b+c Insufficient again Both (1) and (2) together Let's pick some numbers. Since b<0 and b>a, then let's say a=2 and b=1 Now then replacing we have that c<1. Thus 'c' could be either between 'a' and 'b' or to the left of 'a' Answer: E Hope it helps Cheers! J



GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15964

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
29 Jun 2015, 02:28
Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up  doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Books  GMAT Club Tests  Best Prices on GMAT Courses  GMAT Mobile App  Math Resources  Verbal Resources



GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15964

Re: If a, b, c are three numbers on the number line shown above [#permalink]
Show Tags
09 Sep 2016, 04:18
Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up  doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Books  GMAT Club Tests  Best Prices on GMAT Courses  GMAT Mobile App  Math Resources  Verbal Resources




Re: If a, b, c are three numbers on the number line shown above
[#permalink]
09 Sep 2016, 04:18








Similar topics 
Author 
Replies 
Last post 
Similar Topics:


33


If a, b, c, and d are numbers on the number line shown and if

ramonguib 
3 
26 Jan 2017, 09:14 

6


On a number line, integer C is between integers A and B. What is the

Bunuel 
8 
06 Jun 2017, 15:38 

19


For real numbers, A, B, C, and D on the number line

idinuv 
15 
29 Aug 2016, 11:52 

22


If the successive tick marks shown on the number line above

Walkabout 
7 
24 Nov 2016, 22:03 

13


If the successive tick marks shown on the number line above are equall

gtr022001 
6 
29 Jul 2015, 00:53 



