Last visit was: 14 Jul 2024, 11:04 It is currently 14 Jul 2024, 11:04
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.

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

SORT BY:
Tags:
Show Tags
Hide Tags
Math Expert
Joined: 02 Sep 2009
Posts: 94342
Own Kudos [?]: 640761 [16]
Given Kudos: 85011
Manager
Joined: 23 May 2017
Posts: 191
Own Kudos [?]: 360 [0]
Given Kudos: 9
Concentration: Finance, Accounting
WE:Programming (Energy and Utilities)
Senior Manager
Joined: 24 Apr 2016
Posts: 255
Own Kudos [?]: 697 [0]
Given Kudos: 48
CEO
Joined: 26 Feb 2016
Posts: 2865
Own Kudos [?]: 5312 [0]
Given Kudos: 47
Location: India
GPA: 3.12
Re: For the list of numbers above, which of the following could be the ran [#permalink]
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)
Intern
Joined: 27 Nov 2016
Posts: 40
Own Kudos [?]: 105 [0]
Given Kudos: 3
Location: India
GPA: 2.71
WE:Consulting (Consulting)
Re: For the list of numbers above, which of the following could be the ran [#permalink]
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
Joined: 24 Apr 2016
Posts: 255
Own Kudos [?]: 697 [0]
Given Kudos: 48
Re: For the list of numbers above, which of the following could be the ran [#permalink]
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
VP
Joined: 15 Dec 2016
Posts: 1352
Own Kudos [?]: 220 [0]
Given Kudos: 188
For the list of numbers above, which of the following could be the ran [#permalink]

Are my take-away's from this problem accurate

a) Range can NEVER be negative

b) the Range in this list HAS to be >= 25
Math Expert
Joined: 02 Sep 2009
Posts: 94342
Own Kudos [?]: 640761 [0]
Given Kudos: 85011
Re: For the list of numbers above, which of the following could be the ran [#permalink]
jabhatta2 wrote:

Are my take-away's from this problem accurate

a) Range can NEVER be negative

b) the Range in this list HAS to be >= 25

_____________________________
1. Correct
2. Correct
Non-Human User
Joined: 09 Sep 2013
Posts: 33966
Own Kudos [?]: 851 [0]
Given Kudos: 0
Re: For the list of numbers above, which of the following could be the ran [#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: For the list of numbers above, which of the following could be the ran [#permalink]
Moderator:
Math Expert
94342 posts