GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 18 Jan 2019, 03:54

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 in January
PrevNext
SuMoTuWeThFrSa
303112345
6789101112
13141516171819
20212223242526
272829303112
Open Detailed Calendar
  • Free GMAT Strategy Webinar

     January 19, 2019

     January 19, 2019

     07:00 AM PST

     09:00 AM PST

    Aiming to score 760+? Attend this FREE session to learn how to Define your GMAT Strategy, Create your Study Plan and Master the Core Skills to excel on the GMAT.
  • FREE Quant Workshop by e-GMAT!

     January 20, 2019

     January 20, 2019

     07:00 AM PST

     07:00 AM PST

    Get personalized insights on how to achieve your Target Quant Score.

The average of 63, 37 and x is greater than the average of the

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

Hide Tags

 
Manager
Manager
User avatar
P
Joined: 25 Sep 2018
Posts: 150
Location: United States (CA)
Concentration: Finance, Strategy
GMAT 1: 640 Q47 V30
GPA: 3.97
WE: Investment Banking (Investment Banking)
CAT Tests
The average of 63, 37 and x is greater than the average of the  [#permalink]

Show Tags

New post 25 Oct 2018, 00:36
2
00:00
A
B
C
D
E

Difficulty:

  75% (hard)

Question Stats:

28% (02:17) correct 72% (02:25) wrong based on 18 sessions

HideShow timer Statistics

The average of 63, 37 and x is greater than the average of the multiples of 3 between 1 and 111, inclusive. Which of the following is a possible value of x?
I. 64 II. 71 III. 75 IV. 85
A) I, II, Ill, and IV
B) IV only
C) II, Ill and IV
D) III and IV
E). None of these

_________________

Why do we fall?...So we can learn to pick ourselves up again



If you like the post, give it a KUDOS!

Director
Director
User avatar
S
Status: Come! Fall in Love with Learning!
Joined: 05 Jan 2017
Posts: 533
Location: India
Premium Member
Re: The average of 63, 37 and x is greater than the average of the  [#permalink]

Show Tags

New post 25 Oct 2018, 00:56
Hi,

It is a simple question testing the concept of Average.

Average = Total / Number of elements

So, average of three numbers 63,37 and x is

(100+x)/3

Average of multiples of 3 between 1 and 111(inclusive) is,

Multiples of 3 are,

3 ,6, 9, …111

We can find the average of multiples of 3 in using different ways,

One such way is,

Average = (3+111)/2

Rule: If a list of numbers were evenly spaced (common difference) then Average of the entire list is equal to the average of first element and last element of the set.

So average = 57

Given,

(100+x)/3 > 57

100 + x > 171

x > 71

So the answers are 75 and 85.

So the answer is D.

Hope this helps.
_________________

GMAT Mentors
Image

GMAT Club Bot
Re: The average of 63, 37 and x is greater than the average of the &nbs [#permalink] 25 Oct 2018, 00:56
Display posts from previous: Sort by

The average of 63, 37 and x is greater than the average of the

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


Copyright

GMAT Club MBA Forum Home| About| Terms and Conditions and Privacy Policy| 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®.