NEW HERE? LEARN MORE
closeclose
Last visit was: 26 Apr 2024, 01:02 It is currently 26 Apr 2024, 01:02
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

What is the average of the numbers

SORT BY:
Date
Kudos
Tags:
Find Similar Topics 
Show Tags
Hide Tags
User avatar
D
QuantMadeEasy
Senior Manager
Senior Manager
Joined: 28 Feb 2014
Posts: 471
Own Kudos [?]: 559 [5]
Given Kudos: 74
Location: India
Concentration: General Management, International Business
GMAT 1: 570 Q49 V20
GPA: 3.97
WE:Engineering (Education)
Send PM
What is the average of the numbers [#permalink] New post   14 Jan 2021, 00:42
5
Bookmarks
00:00
A
B
C
D
E

Difficulty:

15% (low)

Question Stats:

84% (01:18) correct 16% (01:49) wrong based on 99 sessions
Hide Show timer Statistics
What is the average of the numbers: 7, 14, 21, 33, 44, 55, 102, 104, 106?

a. 54
b. 56
c. 58
d. 60
e. 62
ShowHide Answer
Official Answer
A
Most Helpful Reply
User avatar
D
QuantMadeEasy
Senior Manager
Senior Manager
Joined: 28 Feb 2014
Posts: 471
Own Kudos [?]: 559 [5]
Given Kudos: 74
Location: India
Concentration: General Management, International Business
GMAT 1: 570 Q49 V20
GPA: 3.97
WE:Engineering (Education)
Send PM
What is the average of the numbers [#permalink] New post   15 Jan 2021, 10:56
3
Kudos
2
Bookmarks
There are 3 APs here:
AP1: 7,14,21; average = median = 14
AP2: 33,44,55; average = median = 44
AP3: 102,104,106; average = median = 104

Same number of terms are there in all the three APs

Hence, average = (14+44+104)/3 = 54

A is correct
General Discussion
avatar
B
MariaX
Intern
Intern
Joined: 17 Sep 2020
Posts: 2
Own Kudos [?]: 2 [2]
Given Kudos: 1368
Send PM
Re: What is the average of the numbers [#permalink] New post   22 Jan 2021, 18:32
2
Kudos
There are 9 numbers, the answer must be divided by 9, so it’s only 54.

Posted from my mobile device
avatar
B
mstepano
Current Student
Joined: 01 Feb 2020
Posts: 3
Own Kudos [?]: 1 [0]
Given Kudos: 21
Location: Croatia (Hrvatska)
Schools: IESE'23 (A) Said '23 (A) LBS '23 (WL)
GMAT 1: 660 Q42 V39
GMAT 2: 680 Q48 V35
GPA: 3.85
Send PM
Re: What is the average of the numbers [#permalink] New post   25 Jan 2021, 13:12
MariaX wrote:
There are 9 numbers, the answer must be divided by 9, so it’s only 54.

Posted from my mobile device


I don't think this is true...

e.g. (4+6+11)/3=7, and 7 can not be divided by 3
User avatar
L
Abhishek009
Board of Directors
Joined: 11 Jun 2011
Status:QA & VA Forum Moderator
Posts: 6072
Own Kudos [?]: 4690 [0]
Given Kudos: 463
Location: India
GPA: 3.5
WE:Business Development (Commercial Banking)
Send PM
GMAT ToolKit User
Re: What is the average of the numbers [#permalink] New post   12 Jun 2023, 08:16
QuantMadeEasy wrote:
What is the average of the numbers: 7, 14, 21, 33, 44, 55, 102, 104, 106?

a. 54
b. 56
c. 58
d. 60
e. 62

Count the units digit : \(7 + 4 + 1 + 3 + 4 + 5 + 2 + 4 + 6 = 6\)

\(\frac{6}{9} =\) Units digit \(4 (as 4*9 = 6\) Units digit\()\), thus among the given option only \((A) \)is possible, Answer must be \((A)\)
GMAT Club Bot
gmatclubot
Re: What is the average of the numbers [#permalink]
12 Jun 2023, 08:16
Moderators:
Bunuel
Math Expert
92918 posts
yashikaaggarwal
Senior Moderator - Masters Forum
3137 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