It is currently 24 Nov 2020, 10:45
My Tests

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.

X is a 3-digit number and Y is a 4- digit number. All the di

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Founder
Founder
User avatar
Joined: 18 Apr 2015
Posts: 13889
GRE 1: Q160 V160
Followers: 313

Kudos [?]: 3676 [0], given: 12909

CAT Tests
X is a 3-digit number and Y is a 4- digit number. All the di [#permalink] New post 21 Apr 2018, 03:21
Expert's post
00:00

Question Stats:

74% (00:42) correct 25% (00:59) wrong based on 31 sessions


X is a 3-digit number and Y is a 4 digit number. All the digits of X are greater than 4, and all the digits of Y are less than 5.

Quantity A
Quantity B
The sum of the digits of X
The sum of the digits of Y


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.

Kudos for the right explanation and solution
[Reveal] Spoiler: OA

_________________

New to the GRE, and GRE CLUB Forum?
GRE: All you do need to know about the GRE Test | GRE Prep Club for the GRE Exam - The Complete FAQ
Search GRE Specific Questions | Download Vault
Posting Rules: QUANTITATIVE | VERBAL
FREE Resources: GRE Prep Club Official LinkTree Page | Free GRE Materials - Where to get it!! (2020)

Questions' Banks and Collection:
ETS: ETS Free PowerPrep 1 & 2 All 320 Questions Explanation. | ETS All Official Guides
3rd Party Resource's: All Quant Questions Collection | All Verbal Questions Collection
Books: All GRE Best Books
Scores: The GRE average score at Top 25 Business Schools 2020 Ed. | How to study for GRE retake and score HIGHER - (2020)
How is the GRE Score Calculated -The Definitive Guide (2021)
Tests: GRE Prep Club Tests | FREE GRE Practice Tests [Collection] - New Edition (2021)
Vocab: GRE Prep Club Official Vocabulary Lists for the GRE (2021)
GRE Prep Club on : Facebook | Instagram

2 KUDOS received
Intern
Intern
Joined: 29 Jun 2018
Posts: 10
Followers: 0

Kudos [?]: 11 [2] , given: 0

Re: X is a 3-digit number and Y is a 4- digit number. All the di [#permalink] New post 03 Jul 2018, 08:08
2
This post received
KUDOS
Quantity A can be anything but greater than >12 (4*3)
Quantity B can be anything but lesser than < 20 (5*4)

Hence D !
Manager
Manager
Joined: 18 Jun 2019
Posts: 122
Followers: 1

Kudos [?]: 28 [0], given: 62

Re: X is a 3-digit number and Y is a 4- digit number. All the di [#permalink] New post 11 Sep 2019, 10:10
I don't feel confident about the solution.

My solution:

A: X's digits can take any value above 4. Max is 9.Therefore, max sum would be 9+9+9=27
B: Y's digits can take anytjing below 5. Max is 4. therefore, max sum would be 4+4+4+4=16

So, A>B?

or

Is my answer wrong because I'm only considering the extreme possibility?
1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 3907
Followers: 163

Kudos [?]: 4766 [1] , given: 70

Re: X is a 3-digit number and Y is a 4- digit number. All the di [#permalink] New post 11 Sep 2019, 10:19
1
This post received
KUDOS
Expert's post
bellavarghese wrote:

Is my answer wrong because I'm only considering the extreme possibility?


Yes. You're examining only the biggest possible values of X and Y.
_________________

Brent Hanneson – Creator of greenlighttestprep.com
Image
Sign up for GRE Question of the Day emails

1 KUDOS received
GRE Instructor
User avatar
Joined: 10 Apr 2015
Posts: 3907
Followers: 163

Kudos [?]: 4766 [1] , given: 70

Re: X is a 3-digit number and Y is a 4- digit number. All the di [#permalink] New post 11 Sep 2019, 10:22
1
This post received
KUDOS
Expert's post
Carcass wrote:


X is a 3-digit number and Y is a 4 digit number. All the digits of X are greater than 4, and all the digits of Y are less than 5.

Quantity A
Quantity B
The sum of the digits of X
The sum of the digits of Y




Let's examine some POSSIBLE cases....

case i: It COULD be the case that X = 999 and Y = 1111
We get:
Quantity A: sum of the digits of X = 9 + 9 + 9 = 27
Quantity B: sum of the digits of Y = 1 + 1 + 1 + 1 = 4
In this case, Quantity A is greater

case ii: It COULD be the case that X = 555 and Y = 4444
We get:
Quantity A: sum of the digits of X = 5 + 5 + 5 = 15
Quantity B: sum of the digits of Y = 4 + 4 + 4 + 4 = 16
In this case, Quantity B is greater

Answer: D

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com
Image
Sign up for GRE Question of the Day emails

Re: X is a 3-digit number and Y is a 4- digit number. All the di   [#permalink] 11 Sep 2019, 10:22
Display posts from previous: Sort by

X is a 3-digit number and Y is a 4- digit number. All the di

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GRE Prep Club Forum Home| About| Terms and Conditions and Privacy Policy| GRE Prep Club Rules| Contact

Powered by phpBB © phpBB Group

Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.