It is currently 18 Nov 2017, 11:24

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

2 KUDOS received
Manager
Manager
avatar
Joined: 02 Dec 2012
Posts: 178

Kudos [?]: 3573 [2], given: 0

For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 07 Dec 2012, 06:38
2
This post received
KUDOS
4
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

81% (00:47) correct 19% (00:50) wrong based on 1278 sessions

HideShow timer Statistics

For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8, the mean is how much greater than the median?

(A) 0
(B) 1
(C) n+l
(D) n+2
(E) n+3
[Reveal] Spoiler: OA

Kudos [?]: 3573 [2], given: 0

Expert Post
3 KUDOS received
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 42249

Kudos [?]: 132595 [3], given: 12326

Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 07 Dec 2012, 06:42
3
This post received
KUDOS
Expert's post
6
This post was
BOOKMARKED
Walkabout wrote:
For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8, the mean is how much greater than the median?

(A) 0
(B) 1
(C) n+l
(D) n+2
(E) n+3


Given set in ascending order is {n, n+1, n+2, n+4, n+8}.

\(Mean=\frac{n+(n + 1)+(n + 2)+(n + 4)+(n + 8)}{5}=n+3\);

\(Median=middle \ term=n+2\);

\(Difference=(n+3)-(n+2)=1\).

Answer: B.
_________________

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?
Extra-hard Quant Tests with Brilliant Analytics

Kudos [?]: 132595 [3], given: 12326

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 15703

Kudos [?]: 281 [0], given: 0

Premium Member
Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 21 Dec 2013, 22:29
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

Kudos [?]: 281 [0], given: 0

Director
Director
User avatar
Joined: 10 Mar 2013
Posts: 591

Kudos [?]: 476 [0], given: 200

Location: Germany
Concentration: Finance, Entrepreneurship
GMAT 1: 580 Q46 V24
GPA: 3.88
WE: Information Technology (Consulting)
GMAT ToolKit User
Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 19 Jun 2014, 12:07
Let's say n=2 than the set looks like this (2,3,4,6,10). The Average = 25/5=5 and the median is equal to 4 --> 5-4=1 (B)
_________________

When you’re up, your friends know who you are. When you’re down, you know who your friends are.

Share some Kudos, if my posts help you. Thank you !

800Score ONLY QUANT CAT1 51, CAT2 50, CAT3 50
GMAT PREP 670
MGMAT CAT 630
KAPLAN CAT 660

Kudos [?]: 476 [0], given: 200

1 KUDOS received
Manager
Manager
avatar
Joined: 24 Oct 2012
Posts: 65

Kudos [?]: 19 [1], given: 5

WE: Information Technology (Computer Software)
Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 19 Jun 2014, 13:16
1
This post received
KUDOS
I did it similar to BrainLab .

plug in numbers, 1 for n.

mean = 1+2+3+5+9/5 = 20/5 = 4

median = 3

difference = 1

Plugin 2 for n

mean = 2+3+4+6+10/5 = 25/5 = 5

median = 4

difference = 1.

Kudos [?]: 19 [1], given: 5

1 KUDOS received
Manager
Manager
avatar
Joined: 07 Apr 2014
Posts: 138

Kudos [?]: 31 [1], given: 81

Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 11 Sep 2014, 10:32
1
This post received
KUDOS
Walkabout wrote:
For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8, the mean is how much greater than the median?

(A) 0
(B) 1
(C) n+l
(D) n+2
(E) n+3



if n=1 then 1, 2, 3, 5, 9

3 = median

mean = 20 / 5 = 4

difference =1

Kudos [?]: 31 [1], given: 81

SVP
SVP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1852

Kudos [?]: 2709 [0], given: 193

Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 30 Sep 2014, 23:11
\(Mean = \frac{5n+15}{3} = n+3\)

Median = n+2

Difference = 1

Answer = B
_________________

Kindly press "+1 Kudos" to appreciate :)

Kudos [?]: 2709 [0], given: 193

Non-Human User
User avatar
Joined: 09 Sep 2013
Posts: 15703

Kudos [?]: 281 [0], given: 0

Premium Member
Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 12 Jan 2016, 17:35
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

Kudos [?]: 281 [0], given: 0

Expert Post
1 KUDOS received
Target Test Prep Representative
User avatar
S
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 1806

Kudos [?]: 920 [1], given: 3

Location: United States (CA)
Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 09 Jun 2016, 14:04
1
This post received
KUDOS
Expert's post
Walkabout wrote:
For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8, the mean is how much greater than the median?

(A) 0
(B) 1
(C) n+l
(D) n+2
(E) n+3


Let’s first calculate the mean (arithmetic average).

mean = sum/quantity

mean = (n + n + 1 + n + 2 + n + 4 + n + 8)/5

mean = (5n + 15)/5

mean = n + 3

Next, we determine the median. The median is the middle value when the terms are ordered from least to greatest. The terms ordered from least to greatest are as follows:

n, n + 1, n + 2, n + 4, n + 8

The median is n + 2.

Finally we are asked how much greater the mean is than the median. To determine the difference we can subtract the smaller value (the median) from the larger value (the mean) and we get:

n + 3 – (n + 2) = n + 3 – n – 2 = 1

The answer is B.
_________________

Scott Woodbury-Stewart
Founder and CEO

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Kudos [?]: 920 [1], given: 3

Director
Director
avatar
G
Joined: 02 Sep 2016
Posts: 788

Kudos [?]: 43 [0], given: 274

Premium Member CAT Tests
Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8 [#permalink]

Show Tags

New post 01 Apr 2017, 09:24
Walkabout wrote:
For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8, the mean is how much greater than the median?

(A) 0
(B) 1
(C) n+l
(D) n+2
(E) n+3


Add all the terms and the answer is 5n+15
Mean=[5(n+3)]/5= n+3

Median is the 3rd terms (n+2)

Mean-Median= n+3-n-2=1

Kudos [?]: 43 [0], given: 274

Re: For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8   [#permalink] 01 Apr 2017, 09:24
Display posts from previous: Sort by

For the positive numbers, n, n + 1, n + 2, n + 4, and n + 8

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


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

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.