Find all School-related info fast with the new School-Specific MBA Forum

It is currently 29 Apr 2016, 09:29
GMAT Club 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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If the average (arithmetic mean) of six numbers is 75, how

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

2 KUDOS received
Senior Manager
Senior Manager
avatar
Joined: 10 Nov 2010
Posts: 266
Location: India
Concentration: Strategy, Operations
GMAT 1: 520 Q42 V19
GMAT 2: 540 Q44 V21
WE: Information Technology (Computer Software)
Followers: 5

Kudos [?]: 189 [2] , given: 22

If the average (arithmetic mean) of six numbers is 75, how [#permalink]

Show Tags

New post 21 Feb 2011, 09:40
2
This post received
KUDOS
8
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

73% (01:43) correct 27% (00:52) wrong based on 469 sessions

HideShow timer Statictics

If the average (arithmetic mean) of six numbers is 75, how many of the numbers are equal to 75 ?

(1) None of the six numbers is less than 75.
(2) None of the six numbers is greater than 75.
[Reveal] Spoiler: OA

_________________

The proof of understanding is the ability to explain it.

Expert Post
3 KUDOS received
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 32531
Followers: 5621

Kudos [?]: 68215 [3] , given: 9797

Re: Average of 6 numbers [#permalink]

Show Tags

New post 21 Feb 2011, 09:46
3
This post received
KUDOS
Expert's post
3
This post was
BOOKMARKED
If the average (arithmetic mean) of six numbers is 75, how many of the numbers are equal to 75 ?

Given: sum of six numbers = 6*75

(1) None of the six numbers is less than 75 --> all 6 numbers must be 75, because if even one of them is more than 75 then the sum will be more than 6*75. Sufficient.

(2) None of the six numbers is greater than 75 --> the same here: all 6 numbers must be 75, because if even one of them is less than 75 then the sum will be less then than 6*75. Sufficient.

Answer: D.
_________________

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?
Extra-hard Quant Tests with Brilliant Analytics

1 KUDOS received
Director
Director
User avatar
Status: No dream is too large, no dreamer is too small
Joined: 14 Jul 2010
Posts: 650
Followers: 37

Kudos [?]: 590 [1] , given: 39

Re: Average of 6 numbers [#permalink]

Show Tags

New post 21 Feb 2011, 09:50
1
This post received
KUDOS
GMATD11 wrote:
104) If the average of six numbers is 75, how many of the numbers are equal to 75?

a) None of the six numbers is less than 75
b) None of the six numbers is greater than 75


a)none is less than 75 so all numbers are 75 as averagege is 75
b) Noe is greater than 75 so all numbers are 75 as average is 75. If any number become less than 75 then average will not 75 it will less than 75.
_________________

Collections:-
PSof OG solved by GC members: http://gmatclub.com/forum/collection-ps-with-solution-from-gmatclub-110005.html
DS of OG solved by GC members: http://gmatclub.com/forum/collection-ds-with-solution-from-gmatclub-110004.html
100 GMAT PREP Quantitative collection http://gmatclub.com/forum/gmat-prep-problem-collections-114358.html
Collections of work/rate problems with solutions http://gmatclub.com/forum/collections-of-work-rate-problem-with-solutions-118919.html
Mixture problems in a file with best solutions: http://gmatclub.com/forum/mixture-problems-with-best-and-easy-solutions-all-together-124644.html

Manager
Manager
User avatar
Joined: 17 Feb 2011
Posts: 200
Concentration: Real Estate, Finance
Schools: MIT (Sloan) - Class of 2014
GMAT 1: 760 Q50 V44
Followers: 41

Kudos [?]: 628 [0], given: 70

Re: Average of 6 numbers [#permalink]

Show Tags

New post 21 Feb 2011, 18:57
Both alternatives state that the 6 numbers are 75. Hence, D.
Senior Manager
Senior Manager
avatar
Joined: 21 Mar 2010
Posts: 314
Followers: 5

Kudos [?]: 29 [0], given: 33

Re: Average of 6 numbers [#permalink]

Show Tags

New post 22 Feb 2011, 13:04
GMATD11 wrote:
104) If the average of six numbers is 75, how many of the numbers are equal to 75?

a) None of the six numbers is less than 75
b) None of the six numbers is greater than 75




D! Very obvious from the two options given.
GMAT Club Legend
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 9219
Followers: 453

Kudos [?]: 114 [0], given: 0

Premium Member
Re: If the average (arithmetic mean) of six numbers is 75, how [#permalink]

Show Tags

New post 02 May 2014, 11:12
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
GMAT Club Legend
User avatar
Joined: 09 Sep 2013
Posts: 9219
Followers: 453

Kudos [?]: 114 [0], given: 0

Premium Member
Re: If the average (arithmetic mean) of six numbers is 75, how [#permalink]

Show Tags

New post 17 Jun 2015, 15:00
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 the average (arithmetic mean) of six numbers is 75, how   [#permalink] 17 Jun 2015, 15:00
    Similar topics Author Replies Last post
Similar
Topics:
5 Experts publish their posts in the topic If the average (arithmetic mean) of six different numbers is 25, how m Bunuel 4 12 Nov 2014, 09:48
3 Experts publish their posts in the topic If the average (arithmetic mean) of 4 numbers is 50, how man Bunuel 6 20 Feb 2014, 01:11
9 Experts publish their posts in the topic If the average (arithmetic mean) of 4 numbers is 30, how enigma123 5 24 Feb 2012, 17:01
9 Experts publish their posts in the topic If the average (arithmetic mean) of 6 numbers is 75, how rxs0005 8 26 Sep 2010, 06:10
2 Experts publish their posts in the topic If the average (arithmetic mean) of four different numbers is 30, how mexicanhoney 4 06 Oct 2007, 00:05
Display posts from previous: Sort by

If the average (arithmetic mean) of six numbers is 75, how

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.