 It is currently 22 Sep 2020, 09:15 ### 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 all numbers n, n* = 32 - n  Question banks Downloads My Bookmarks Reviews Important topics
Author Message
TAGS:
Founder  Joined: 18 Apr 2015
Posts: 13341
Followers: 288

Kudos [?]: 3378 , given: 12174

For all numbers n, n* = 32 - n [#permalink]
Expert's post 00:00

Question Stats: 70% (00:28) correct 29% (00:38) wrong based on 95 sessions
For all numbers $$n$$, $$n^* = 32 - n$$.

 Quantity A Quantity B $$(n^*)^*$$ $$n$$

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests. Active Member Joined: 29 May 2018
Posts: 126
Followers: 0

Kudos [?]: 110  , given: 4

Re: For all numbers n, n* = 32 - n [#permalink]
2
KUDOS
Carcass wrote:
For all numbers $$n$$, $$n* = 32 - n$$.

 Quantity A Quantity B $$(n*)^*$$ $$n$$

A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.

Given $$n$$, $$n* = 32 - n$$

Column A n^*= 32 - n .

When (n^*)^* = 32 ( 32 - n ) => n .

Column B and A values are same.

C. Intern Joined: 21 Nov 2017
Posts: 33
Followers: 0

Kudos [?]: 17  , given: 0

Re: For all numbers n, n* = 32 - n [#permalink]
2
KUDOS
n* = 32 - n
--> Quantity A = (n*)* =(32-n)* = 32 - (32-n) = n = Quantity B

Key: C Manager Joined: 22 Feb 2018
Posts: 163
Followers: 2

Kudos [?]: 138  , given: 22

Re: For all numbers n, n* = 32 - n [#permalink]
2
KUDOS
n* = 32-n for all numbers n.
A: (n*)* = (32-n)* = 32 - (32-n) = n
B: n
Thus, A and B are equal and the answer is C.

_________________

Manager Joined: 27 Feb 2017
Posts: 188
Followers: 1

Kudos [?]: 77 , given: 15

Re: For all numbers n, n* = 32 - n [#permalink]
so '*' here means '32 -' ? I found this kinda confusing GRE Instructor Joined: 10 Apr 2015
Posts: 3829
Followers: 148

Kudos [?]: 4474  , given: 69

Re: For all numbers n, n* = 32 - n [#permalink]
1
KUDOS
Expert's post
kruttikaaggarwal wrote:
so '*' here means '32 -' ? I found this kinda confusing

This is known as a Strange Operator question (see video below)

For this question, the asterisk symbol (*) tells us to take whatever number is next to it and subtract it from 32.
That is, *n = 32 - n

So, for example, *10 = 32 - 10 = 22
And *15 = 32 - 15 = 17
And *100 = 32 - 100 = -68

------NOW ONTO THE QUESTION------------

Quantity A: (n*)*
Quantity B: n

Let's simplify (n*)*
First off, n* = 32 - n
So, (n*)* = (32 - n)*

Now let's simplify (32 - n)*
(32 - n)* = 32 - (32 - n)
= n

So, we have:
Quantity A: n
Quantity B: n

RELATED VIDEO

_________________

Brent Hanneson – Creator of greenlighttestprep.com
If you enjoy my solutions, you'll like my GRE prep course.  GRE Instructor Joined: 10 Apr 2015
Posts: 3829
Followers: 148

Kudos [?]: 4474  , given: 69

Re: For all numbers n, n* = 32 - n [#permalink]
1
KUDOS
Expert's post
A few more Strange Operator questions to practice with:
- https://greprepclub.com/forum/for-all-i ... -5221.html
- https://greprepclub.com/forum/qotd-4-if ... -2328.html
- https://greprepclub.com/forum/the-opera ... -1884.html

Cheers,
Brent
_________________

Brent Hanneson – Creator of greenlighttestprep.com
If you enjoy my solutions, you'll like my GRE prep course.  Manager Joined: 09 Mar 2019
Posts: 52
Followers: 0

Kudos [?]: 15  , given: 0

Re: For all numbers n, n* = 32 - n [#permalink]
1
KUDOS
Please update the picture. Since, intially it is showing product of n and * and not>>> (n*).
Thankyou.
Founder  Joined: 18 Apr 2015
Posts: 13341
Followers: 288

Kudos [?]: 3378 , given: 12174

Re: For all numbers n, n* = 32 - n [#permalink]
Expert's post
Updated.

Thank you
_________________

Need Practice? 20 Free GRE Quant Tests available for free with 20 Kudos
GRE Prep Club Members of the Month: Each member of the month will get three months free access of GRE Prep Club tests. Re: For all numbers n, n* = 32 - n   [#permalink] 08 Jun 2019, 11:03
Display posts from previous: Sort by

# For all numbers n, n* = 32 - n  Question banks Downloads My Bookmarks Reviews Important topics  Powered by phpBB © phpBB Group Kindly note that the GRE® test is a registered trademark of the Educational Testing Service®, and this site has neither been reviewed nor endorsed by ETS®.