Last visit was: 24 Jul 2024, 04:51 It is currently 24 Jul 2024, 04:51
Toolkit
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

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.

# What is the value of the sum of a list of n odd integers?

SORT BY:
Tags:
Show Tags
Hide Tags
Math Expert
Joined: 02 Sep 2009
Posts: 94605
Own Kudos [?]: 643486 [5]
Given Kudos: 86734
Manager
Joined: 22 Sep 2012
Posts: 109
Own Kudos [?]: 147 [1]
Given Kudos: 49
Concentration: Strategy, Technology
WE:Information Technology (Computer Software)
Manager
Joined: 14 Oct 2014
Posts: 53
Own Kudos [?]: 515 [1]
Given Kudos: 98
Location: United States
GMAT 1: 500 Q36 V23
Manager
Joined: 27 Aug 2014
Posts: 244
Own Kudos [?]: 430 [1]
Given Kudos: 76
Location: Netherlands
Concentration: Finance, Strategy
Schools: ISB '21 LBS '22
GPA: 3.9
WE:Analyst (Energy and Utilities)
Re: What is the value of the sum of a list of n odd integers? [#permalink]
1
Kudos
Bunuel wrote:

Tough and Tricky questions: Number Properties.

What is the value of the sum of a list of n odd integers?

(1) n = 8
(2) The square of the number of integers on the list is 64.

Kudos for a correct solution.

let the odd integers be a1, a2....an. Question asks a1+a2+a3---an = ?

from 1: n=8, so NSF
from 2: n2 =64; so n =8 same as 1 so NSF

1+2 = NSF

Manager
Joined: 20 Feb 2013
Posts: 66
Own Kudos [?]: 98 [1]
Given Kudos: 45
Location: India
GMAT 1: 690 Q49 V34
WE:Information Technology (Computer Software)
Re: What is the value of the sum of a list of n odd integers? [#permalink]
1
Bookmarks
Solution: Determine the sum of a list of n odd integers

Statement 1: n = 8
Insufficient as we don't know the exact numbers

Statement 2: The square of the number of integers on the list is 64
Same information as in Statement 1, Insufficient as we don't know the exact numbers

Combining 1 & 2: No new information is provided.

Intern
Joined: 02 Jan 2018
Posts: 4
Own Kudos [?]: 7 [0]
Given Kudos: 98
Location: India
GPA: 3.7
Re: What is the value of the sum of a list of n odd integers? [#permalink]
We need the sum of a list of integers.
avg = sum/n
sum = avg*n

So to find the sum we need the average of the numbers and the number of integers.

From statement (1) n = 8 ; but we do not know the average --> INSUFF

From statement (2) n^2 = 64 ---> n =8 ; we still do not know the average --> INSUFF

Both statements are the same therefore ans --> (E)

KUDOS if you like my solution
Non-Human User
Joined: 09 Sep 2013
Posts: 34060
Own Kudos [?]: 853 [0]
Given Kudos: 0
Re: What is the value of the sum of a list of n odd integers? [#permalink]
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.
Re: What is the value of the sum of a list of n odd integers? [#permalink]
Moderator:
Math Expert
94605 posts