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

 It is currently 18 Jun 2019, 19:15 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.  For the list of numbers above, which of the following could be the ran

Author Message
TAGS:

Hide Tags

Math Expert V
Joined: 02 Sep 2009
Posts: 55670
For the list of numbers above, which of the following could be the ran  [#permalink]

Show Tags 00:00

Difficulty:   35% (medium)

Question Stats: 72% (01:25) correct 28% (01:23) wrong based on 104 sessions

HideShow timer Statistics

2, 12, -5, 20, x, y

For the list of numbers above, which of the following could be the range?

I. -25

II. 22

III. 32

A. I only
B. II only
C. III only
D. II and III
E. I, II, and III

_________________
Manager  S
Joined: 23 May 2017
Posts: 236
Concentration: Finance, Accounting
WE: Programming (Energy and Utilities)
Re: For the list of numbers above, which of the following could be the ran  [#permalink]

Show Tags

Attachment: FullSizeRender (13).jpg [ 80.88 KiB | Viewed 1096 times ]

My take: C
_________________
If you like the post, please award me Kudos!! It motivates me
Senior Manager  G
Joined: 24 Apr 2016
Posts: 328
Re: For the list of numbers above, which of the following could be the ran  [#permalink]

Show Tags

Listing the numbers in order ( as we do not know the values of x and y, they have been placed at the end for now)

-5, 2, 12, 20,x,y

Let's consider that x and y are not part of the above list. Then the Range of the above list becomes 20 - (-5) = 25. Now depending upon the values of x and y the Range of the list can either be more than 25 or be 25.

Let's see the options.

1. -25. As Range is always positive, this option is out.

2. 22. As shown above, that the minimum range will be 25. This option is out.

3. 32. This could be a possible range.

Senior PS Moderator V
Joined: 26 Feb 2016
Posts: 3373
Location: India
GPA: 3.12
Re: For the list of numbers above, which of the following could be the ran  [#permalink]

Show Tags

Since we are given 4 numbers (2, 12, -5, 20) the range of these numbers are 25(20-(-5))
So, whatever the value we assume for both x and y, we cannot have 22 as a range.
However if we assume -12 as a value for x, we can have the range 32.
-25 as a range is also not possible for the same reason(i.e we can't have a range lesser than 25) (Option C)
_________________
You've got what it takes, but it will take everything you've got
Manager  S
Joined: 27 Nov 2016
Posts: 53
Location: India
GPA: 2.71
WE: Consulting (Consulting)
Re: For the list of numbers above, which of the following could be the ran  [#permalink]

Show Tags

quantumliner wrote:
Listing the numbers in order ( as we do not know the values of x and y, they have been placed at the end for now)

-5, 2, 12, 20,x,y

Let's consider that x and y are not part of the above list. Then the Range of the above list becomes 20 - (-5) = 25. Now depending upon the values of x and y the Range of the list can either be more than 25 or be 25.

Let's see the options.

1. -25. As Range is always positive, this option is out.

2. 22. As shown above, that the minimum range will be 25. This option is out.

3. 32. This could be a possible range.

Why minimum range will be 20. We can place X & Y anywhere in the list. say X = 10 and Y = 24 Range = 24-2 = 22 ??
Senior Manager  G
Joined: 24 Apr 2016
Posts: 328
Re: For the list of numbers above, which of the following could be the ran  [#permalink]

Show Tags

vishalkumar4mba

I have said the minimum Range will be 25 not 20.

In the example you have given -> X = 10 and Y = 24 , the list will look like -5, 2, 10, 12, 20, 24. So the Range will be 24 - (-5) = 29

So no matter what value of x or y is taken, the Range will be greater than equal to 25
Non-Human User Joined: 09 Sep 2013
Posts: 11393
Re: For the list of numbers above, which of the following could be the ran  [#permalink]

Show Tags

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: For the list of numbers above, which of the following could be the ran   [#permalink] 10 Sep 2018, 10:57
Display posts from previous: Sort by

For the list of numbers above, which of the following could be the ran  