NEW HERE? LEARN MORE
closeclose
Last visit was: 14 May 2024, 02:52 It is currently 14 May 2024, 02:52
Decision Tracker
My Rewards
New posts
New comers' posts

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.
Go to My Error Log Learn more
Close
Request Expert Reply
Confirm Cancel

Set A contains 20 numbers and Set B contains 40 numbers. Is

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
avatar
B
piyushksharma
Manager
Manager
Joined: 21 Feb 2012
Posts: 52
Own Kudos [?]: 422 [15]
Given Kudos: 15
Location: Canada
Concentration: Finance, General Management
GMAT 1: 600 Q49 V23
GPA: 3.8
WE:Information Technology (Computer Software)
Send PM
Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   10 May 2012, 06:17
15
Bookmarks
00:00
A
B
C
D
E

Difficulty:

25% (medium)

Question Stats:

75% (01:29) correct 25% (01:31) wrong based on 313 sessions
Hide Show timer Statistics
Set A contains 20 numbers and Set B contains 40 numbers. Is the range of Set B greater than 45?

(1) If Set A and Set B are combined, the resulting range exceeds 50.
(2) The range of Set B is greater than the range of Set A.
ShowHide Answer
Official Answer
E
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 93256
Own Kudos [?]: 623598 [4]
Given Kudos: 81862
Send PM
CAT Tests Forum Quiz Mode
Re: Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   10 May 2012, 06:48
3
Kudos
1
Bookmarks
Expert Reply
piyushksharma wrote:
Set A contains 20 numbers and Set B contains 40 numbers. Is the range of Set B greater than 45?

(1) If Set A and Set B are combined, the resulting range exceeds 50.
(2) The range of Set B is greater than the range of Set A.


Try to construct two scenarios which give different answers. Even when we consider two statements together:

If A={0, 0, ..., 1} and B={0, 0, ..., 100} then the answer is YES;
If A={0, 0, ...., 30} and B={20, 20, ..., 60} then the answer is NO.

Answer: E.
User avatar
S
varun325
Manager
Manager
Joined: 25 Oct 2017
Posts: 81
Own Kudos [?]: 39 [0]
Given Kudos: 81
Location: India
Concentration: Social Entrepreneurship, Strategy
Schools: HEC Montreal (A) Schulich Sept '23 Sauder '23
GMAT 1: 600 Q48 V26
GMAT 2: 650 Q48 V32
GPA: 3.46
Send PM
Re: Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   12 Mar 2019, 19:38
piyushksharma wrote:
Set A contains 20 numbers and Set B contains 40 numbers. Is the range of Set B greater than 45?

(1) If Set A and Set B are combined, the resulting range exceeds 50.
(2) The range of Set B is greater than the range of Set A.



I have one doubt regarding sets that sets contain only different set of numbers and lists are the ones in which same numbers can repeat. Can someone please clarify this doubt.
avatar
B
msu6800
Intern
Intern
Joined: 18 Jun 2016
Posts: 24
Own Kudos [?]: 8 [0]
Given Kudos: 825
Concentration: Accounting, Accounting
WE:Accounting (Education)
Send PM
Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   16 Apr 2019, 01:33
If A={0, 0, ..., 1} and B={0, 0, ..., 100}
If set A and set B are combined, then range is 100-0=100
Again,
If A={0, 0, ...., 30} and B={20, 20, ..., 60} then the combined set will {0,0,-----,20--,30,----60}
Here Range =60-0=60
In both scenarios, combined set range is greater than 50. So, why statement A is insufficient? What I am missing? Bunuel

Posted from my mobile device
User avatar
L
Bunuel
Math Expert
Joined: 02 Sep 2009
Posts: 93256
Own Kudos [?]: 623598 [2]
Given Kudos: 81862
Send PM
CAT Tests Forum Quiz Mode
Re: Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   16 Apr 2019, 01:37
2
Kudos
Expert Reply
msu6800 wrote:
If A={0, 0, ..., 1} and B={0, 0, ..., 100}
If set A and set B are combined, then range is 100-0=100
Again,
If A={0, 0, ...., 30} and B={20, 20, ..., 60} then the combined set will {0,0,-----,20--,30,----60}
Here Range =60-0=60
In both scenarios, combined set range is greater than 50. So, why statement A is insufficient? What I am missing? Bunuel

Posted from my mobile device


The question asks: is the range of Set B greater than 45?

If A={0, 0, ..., 1} and B={0, 0, ..., 100}, then he range of Set B IS greater than 45, it's 100 (the answer is YES);
If A={0, 0, ...., 30} and B={20, 20, ..., 60}, then the range of Set B is NOT greater than 45, it's 40 (then the answer is NO).
User avatar
S
sumi747
Manager
Manager
Joined: 17 May 2018
Posts: 128
Own Kudos [?]: 49 [0]
Given Kudos: 82
Location: India
Send PM
Re: Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   16 Apr 2019, 01:45
Set A has 20numbers but since the numbers are not given we cannot decide what it's range is, same goes for set B.
So from statement 1 the range is greater than 50 for both sets put together does not help us to determine if set B's range is greater than 45
Statement 2 says set B's range is greater than that of A
Does not help
Statement 1 and 2 put together does not give any new information.
IMO E

Posted from my mobile device
avatar
B
msu6800
Intern
Intern
Joined: 18 Jun 2016
Posts: 24
Own Kudos [?]: 8 [0]
Given Kudos: 825
Concentration: Accounting, Accounting
WE:Accounting (Education)
Send PM
Re: Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   16 Apr 2019, 04:21
Got it. Thanks Bunuel

Posted from my mobile device
User avatar
bumpbot
Non-Human User
Joined: 09 Sep 2013
Posts: 32998
Own Kudos [?]: 828 [0]
Given Kudos: 0
Send PM
Re: Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink] New post   08 Jan 2023, 06:59
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 Club Bot
gmatclubot
Re: Set A contains 20 numbers and Set B contains 40 numbers. Is [#permalink]
08 Jan 2023, 06:59
Moderator:
Bunuel
Math Expert
93256 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne
Main navigation
GMAT Resources
Partners
MBA Resources
www.gmac.com|www.mba.com | | GMAT Club Rules | Terms and Conditions