November 18, 2018 November 18, 2018 07:00 AM PST 09:00 AM PST Get personalized insights on how to achieve your Target Quant Score. November 18th, 7 AM PST November 20, 2018 November 20, 2018 09:00 AM PST 10:00 AM PST The reward for signing up with the registration form and attending the chat is: 6 free examPAL quizzes to practice your new skills after the chat.
Author 
Message 
TAGS:

Hide Tags

Intern
Joined: 21 Apr 2011
Posts: 1

If A=0.abc, where a, b, and c are digits of A, is A greater
[#permalink]
Show Tags
Updated on: 03 Sep 2012, 02:12
Question Stats:
65% (01:11) correct 35% (01:30) wrong based on 357 sessions
HideShow timer Statistics
If A=0.abc, where a, b, and c are digits of A, is A greater than 2/3? (1) a+b>14 (2) b+c>15
Official Answer and Stats are available only to registered users. Register/ Login.
Originally posted by shrey2287 on 03 Sep 2012, 00:22.
Last edited by Bunuel on 03 Sep 2012, 02:12, edited 2 times in total.
Renamed the topic and edited the question.



Math Expert
Joined: 02 Sep 2009
Posts: 50623

Re: Value after Decimal point.
[#permalink]
Show Tags
03 Sep 2012, 00:37
If A=0.abc, where a, b, and c are digits of A, is A greater than 2/3?Is \(A>\frac{2}{3}\)? > Is \(A>0.666...\)? (1) a+b>14 > since a and b are single digits, then the least value of a is 6 and in this case b must be 9 (a+b=6+9=15>14), thus the least value of A is 0.69, so more than 0.666... Sufficient. (2) b+c>15. Clearly insufficient, since we know nothing about a. Answer: A. Similar questions to practice: thediscreetcharmoftheds12696240.html#p1039662ifx0rstuwhererstandueachrepresentanonzero109735.htmlHope it helps.
_________________
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? Extrahard Quant Tests with Brilliant Analytics



Math Expert
Joined: 02 Sep 2009
Posts: 50623

Re: If A=0.abc, where a, b, and c are digits of A, is A greater
[#permalink]
Show Tags
24 Jun 2013, 02:17



Intern
Joined: 22 May 2013
Posts: 46
Concentration: General Management, Technology
GPA: 3.9
WE: Information Technology (Computer Software)

Re: If A=0.abc, where a, b, and c are digits of A, is A greater
[#permalink]
Show Tags
24 Jun 2013, 08:48
Bunuel wrote: Bumping for review and further discussion*. Get a kudos point for an alternative solution! *New project from GMAT Club!!! Check HEREQuestion: A greater than 2/3? or A greater than 0.6666? This is again a YES or NO, question. Getting either will be fine for the solution. (1) a+b>14 or a+b>=15 The possible ways for a and b how we can get this is : a b 6 9 7 8 8 7 9 6 these are the only possible combinations as anything less than 5 will make the other 10, and well anything more then 9 will result in a 10. anyways, from the above possible values we can see that each is >=0.6666 =>Sufficient (2) b+c>15 Here, the main digit that we are concerned about is a as that decides if the no is >=0.666 or not even if b=c=9, but a=1, it will be less then 0.6666 or if a=b=c=9 the in that case it will be greater. Anyway we need some information of A => Not Sufficient. Ans : A
_________________
PS: Like my approach? Please Help me with some Kudos.



Director
Joined: 20 Feb 2015
Posts: 796
Concentration: Strategy, General Management

Re: If A=0.abc, where a, b, and c are digits of A, is A greater
[#permalink]
Show Tags
27 Jul 2016, 03:20
shrey2287 wrote: If A=0.abc, where a, b, and c are digits of A, is A greater than 2/3?
(1) a+b>14 (2) b+c>15 (1) a+b>14 let a+b=15 also 10+5 9+6 8+7 6+9 lowest possible value for a = 6 therefore, let A =0.690=690/1000 > 2/3 since lowest possible is > 2/3 Sufficient (2) b+c>15 here a can take 1 or a 9 A=0.199 < 2/3 but A=0.999 > 2/3 insufficient A



Current Student
Joined: 18 Oct 2014
Posts: 855
Location: United States
GPA: 3.98

Re: If A=0.abc, where a, b, and c are digits of A, is A greater
[#permalink]
Show Tags
27 Jul 2016, 16:56
shrey2287 wrote: If A=0.abc, where a, b, and c are digits of A, is A greater than 2/3?
(1) a+b>14 (2) b+c>15 Question A>2/3 or .667 1) a+b>14 The minimum possible value for a+b can be 15 lets see the minimum possible value of ab. keeping maximum value of b will give minimum value of a b = 9, hence a=6. these values make the expression as .69c, which is >.667 Sufficient. (2) b+c>15 b+c= 16 (suppose) as in option 1, let's take maximum value for c i.e 9 and minimum value for b i.e 7. But a can be anything from 1 to 9, making .abc > or <2/3 Not Sufficient. A is the answer
_________________
I welcome critical analysis of my post!! That will help me reach 700+



NonHuman User
Joined: 09 Sep 2013
Posts: 8802

Re: If A=0.abc, where a, b, and c are digits of A, is A greater
[#permalink]
Show Tags
28 Oct 2018, 10:14
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=0.abc, where a, b, and c are digits of A, is A greater &nbs
[#permalink]
28 Oct 2018, 10:14






