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

It is currently 15 Oct 2018, 21:09

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

During an experiment, Emily collected 11 different temperature reading

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

Hide Tags

Senior SC Moderator
User avatar
V
Joined: 14 Nov 2016
Posts: 1315
Location: Malaysia
GMAT ToolKit User Premium Member CAT Tests
During an experiment, Emily collected 11 different temperature reading  [#permalink]

Show Tags

New post 12 Feb 2017, 05:57
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

56% (00:57) correct 44% (01:23) wrong based on 29 sessions

HideShow timer Statistics

During an experiment, Emily collected 11 different temperature readings, all of which were integers. How many of the temperature readings were negative?

1) The median temperature reading was -1.
2) Exactly five of the temperature readings were positive.

_________________

"Be challenged at EVERY MOMENT."

“Strength doesn’t come from what you can do. It comes from overcoming the things you once thought you couldn’t.”

"Each stage of the journey is crucial to attaining new heights of knowledge."

Rules for posting in verbal forum | Please DO NOT post short answer in your post!

Advanced Search : https://gmatclub.com/forum/advanced-search/

Manager
Manager
avatar
S
Joined: 17 Apr 2016
Posts: 91
Re: During an experiment, Emily collected 11 different temperature reading  [#permalink]

Show Tags

New post 12 Feb 2017, 19:27
During an experiment, Emily collected 11 different temperature readings, all of which were integers. How many of the temperature readings were negative?

1) The median temperature reading was -1.
2) Exactly five of the temperature readings were positive.

Solution:-

Please make note of the following key points:-
11 different temperature readings, all of which were integers
This clearly indicates that all the readings were unique and all are integers.

Statement 1:-


1) The median temperature reading was -1.

The median is -1. Since no value is same, -1 is not repeated. Besides the next integer after -1 has to be greater than equal to zero.(none negative). Since -1 is median,all the values to the left of the median are smaller than -1 (hence all negative). This we have only 6 negative values.
Sufficient.


Statement 2:-
2) Exactly five of the temperature readings were positive.


Hence the median here will be less than or equal to zero.We do not know about the median here. If the median is zero,then we 5 negative readings. If the median is less than zero (negative) then we have 6 negative readings.

Insufficient.

Hence the answer is Option A.
GMAT Club Bot
Re: During an experiment, Emily collected 11 different temperature reading &nbs [#permalink] 12 Feb 2017, 19:27
Display posts from previous: Sort by

During an experiment, Emily collected 11 different temperature reading

  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®.