Last visit was: 17 Nov 2024, 14:28 It is currently 17 Nov 2024, 14:28

Close

GRE Prep 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 GRE 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
Verbal Expert
Joined: 18 Apr 2015
Posts: 29964
Own Kudos [?]: 36256 [14]
Given Kudos: 25912
Send PM
avatar
Director
Director
Joined: 03 Sep 2017
Posts: 518
Own Kudos [?]: 702 [2]
Given Kudos: 0
Send PM
avatar
Intern
Intern
Joined: 26 Sep 2017
Posts: 31
Own Kudos [?]: 17 [0]
Given Kudos: 0
Send PM
avatar
Director
Director
Joined: 03 Sep 2017
Posts: 518
Own Kudos [?]: 702 [2]
Given Kudos: 0
Send PM
Re: If the tick marks on the number line below are evenly spaced [#permalink]
1
1
Bookmarks
bim1946 wrote:
isn't it inc exponentially so we need to go back which is 2 on reaching X?


It is not increasing exponentially. The questions states that each two tick are evenly spaced so all the tick are distant 2^6 - 2^5 = 32 or 2^5.
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12190 [0]
Given Kudos: 136
Send PM
Re: If the tick marks on the number line below are evenly spaced [#permalink]
Carcass wrote:

This question is part of GREPrepClub - The Questions Vault Project



If the tick marks on the number line below are evenly spaced, what value is represented by x?

< ---------- \(X\) -----------------| -----------------|-------------------|-------------- \(2^5\) --------------- \(2^6\) ------------- | --------->

A. \(2^0\)

B. \(2\)

C. \(-2 * 2^5\)

D. \(-3 * 2^5\)

E. \(-4 * 2^5\)
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Own Kudos [?]: 12190 [3]
Given Kudos: 136
Send PM
Re: If the tick marks on the number line below are evenly spaced [#permalink]
3
Carcass wrote:

This question is part of GREPrepClub - The Questions Vault Project



If the tick marks on the number line below are evenly spaced, what value is represented by x?

< ---------- \(X\) -----------------| -----------------|-------------------|-------------- \(2^5\) --------------- \(2^6\) ------------- | --------->

A. \(2^0\)

B. \(2\)

C. \(-2 * 2^5\)

D. \(-3 * 2\)^5

E. \(-4 * 2^5\)


Let's assign some variables to some of the tick marks:
Image

Let's first determine the distance between two tick marks.
\(2^6-2^5 = 2^5(2-1) = 2^5\)
So, the distance between consecutive tick marks is \(2^5\)

This means U = \(2^5-2^5 = 0\)
And V = \(0-2^5 = -2^5\)
And W = \(-2^5-2^5 = -2(2^5)\)
And X = \(-2(2^5)-2^5 = -3(2^5)\)

Answer: D
Intern
Intern
Joined: 05 Jan 2023
Posts: 22
Own Kudos [?]: 16 [1]
Given Kudos: 35
GRE 1: Q164 V160
Send PM
Re: If the tick marks on the number line below are evenly spaced [#permalink]
1
The difference between each even space = 2^6 - 2^5 = 2^5 = 32.

Since X is 4 'even spaces' to the left of 2^5 = 32, then it is 4*32 units less than 32.

4*32 units less than 32 is also 3*32 units less than zero when you remove one 32 which is -96.

X = -96

Prime factorisation of -96 is as follows:

x = - 96
= -(2*48)
= -2*2*24
= -2*2*2*12
= -2*2*2*2*6
= -2*2*2*2*2*3
= -2^5*3
= -3*2^5

The correct answer is D.
User avatar
GRE Prep Club Legend
GRE Prep Club Legend
Joined: 07 Jan 2021
Posts: 5017
Own Kudos [?]: 74 [0]
Given Kudos: 0
Send PM
Re: If the tick marks on the number line below are evenly spaced [#permalink]
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep 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.
Prep Club for GRE Bot
Re: If the tick marks on the number line below are evenly spaced [#permalink]
Moderators:
GRE Instructor
78 posts
GRE Forum Moderator
37 posts
Moderator
1111 posts
GRE Instructor
234 posts

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