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

It is currently 22 Oct 2019, 02:38

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

For a certain set of z numbers, where z > 1, is the average (arithmeti

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

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 58410
For a certain set of z numbers, where z > 1, is the average (arithmeti  [#permalink]

Show Tags

New post 08 Jan 2018, 07:39
1
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

54% (01:04) correct 46% (01:47) wrong based on 41 sessions

HideShow timer Statistics

For a certain set of z numbers, where z > 1, is the average (arithmetic mean) equal to the median?

(1) If the z numbers in the set are listed in increasing order, then the difference between any pair of successive numbers in the set is 2.
(2) The range of the z numbers in the set is 2(z − 1).

_________________
Retired Moderator
avatar
D
Joined: 25 Feb 2013
Posts: 1178
Location: India
GPA: 3.82
GMAT ToolKit User Reviews Badge
Re: For a certain set of z numbers, where z > 1, is the average (arithmeti  [#permalink]

Show Tags

New post 08 Jan 2018, 09:38
Bunuel wrote:
For a certain set of z numbers, where z > 1, is the average (arithmetic mean) equal to the median?

(1) If the z numbers in the set are listed in increasing order, then the difference between any pair of successive numbers in the set is 2.
(2) The range of the z numbers in the set is 2(z − 1).


Statement 1: implies z numbers are in AP series and in an AP series, Mean=Median. Sufficient

Statement 2: from the range we cannot determine the elements of the set. Insufficient

option A
GMAT Club Bot
Re: For a certain set of z numbers, where z > 1, is the average (arithmeti   [#permalink] 08 Jan 2018, 09:38
Display posts from previous: Sort by

For a certain set of z numbers, where z > 1, is the average (arithmeti

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





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