It is currently 25 Feb 2018, 03:14

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Which of the following is closest to (1)/(1.001)?

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

Hide Tags

1 KUDOS received
Manager
Manager
avatar
S
Joined: 13 Dec 2013
Posts: 171
Location: United States (NY)
Concentration: Nonprofit, International Business
GMAT 1: 710 Q46 V41
GMAT 2: 720 Q48 V40
GPA: 4
WE: Consulting (Consulting)
Reviews Badge
Which of the following is closest to (1)/(1.001)? [#permalink]

Show Tags

New post 10 May 2017, 11:47
1
This post received
KUDOS
2
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

71% (00:54) correct 29% (00:36) wrong based on 58 sessions

HideShow timer Statistics

Which of the following is closest to (1)/(1.001)?

A. 0.997
B. 0.998
C. 0.999
D. 1.000
E. 1.001

This question has been posted previously; however, the thread is short and discontinued. I'm looking for a clear approach for solving this type of problem besides back-solving. Thanks!
[Reveal] Spoiler: OA
2 KUDOS received
Intern
Intern
avatar
Joined: 03 May 2017
Posts: 6
Schools: CBS '14 (M)
Re: Which of the following is closest to (1)/(1.001)? [#permalink]

Show Tags

New post 10 May 2017, 12:09
2
This post received
KUDOS
Cez005 wrote:
Which of the following is closest to (1)/(1.001)?

A. 0.997
B. 0.998
C. 0.999
D. 1.000
E. 1.001

This question has been posted previously; however, the thread is short and discontinued. I'm looking for a clear approach for solving this type of problem besides back-solving. Thanks!


Back solving seems the best way. Since you can eliminate D and E from the get go start with C. Back-solving should be easy because multiplications are with 1.

Another approach could be a little bit of factoring:


1/1.001 = 1000/1001 = (1001-1)/1001 = 1 - 1/1001 ~ 1 - 0.001 ~ 0.999. Since there is approximation inherent in the last two steps of this approach, I would be cautious.
_________________

Abhijit @ Prepitt
GMAT Math Tutor
MBA, Columbia Business School (Graduated 2014)

GMAT Math Workshops ($90/session) | GMAT Math Private Tutoring ($70/hr)

Intern
Intern
avatar
B
Joined: 06 Mar 2017
Posts: 17
Re: Which of the following is closest to (1)/(1.001)? [#permalink]

Show Tags

New post 11 May 2017, 03:30
We straight away ignore the options D and E as they are greater than 1, because in the above fraction the denominator is greater the numerator. Of the remaining, the answer should be C
Director
Director
User avatar
P
Joined: 13 Mar 2017
Posts: 563
Location: India
Concentration: General Management, Entrepreneurship
GPA: 3.8
WE: Engineering (Energy and Utilities)
Re: Which of the following is closest to (1)/(1.001)? [#permalink]

Show Tags

New post 11 May 2017, 03:48
egghead2017 wrote:
We straight away ignore the options D and E as they are greater than 1, because in the above fraction the denominator is greater the numerator. Of the remaining, the answer should be C

Since the question is asking that which is closest to 1/1.001. We can't just eliminate D & E. Though we can eliminate E in comparison to D. But there might be a possibility that 1/1.001 may be closest to 1 also..
So we will have to check it by solving or other methods.
_________________

CAT 99th percentiler : VA 97.27 | DI-LR 96.84 | QA 98.04 | OA 98.95

MBA Social Network : WebMaggu

Appreciate by Clicking +1 Kudos ( Lets be more generous friends.)

Expert Post
Target Test Prep Representative
User avatar
S
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2016
Re: Which of the following is closest to (1)/(1.001)? [#permalink]

Show Tags

New post 15 May 2017, 16:26
Cez005 wrote:
Which of the following is closest to (1)/(1.001)?

A. 0.997
B. 0.998
C. 0.999
D. 1.000
E. 1.001


We can convert 1.001 to a fraction and we have:

1/[(1001/1000)] = 1000/1001

It is obvious that this number is just a little smaller than 1 (which makes it just a little greater than 0.999), so the answer is either D or C. We must decide which. We will compare the difference between 1 and 1000/1001 to the difference between 1000/1001 and 0.999 = 999/1000.

1 - 1000/1001 = 1000/1000 - 1000/1001

= 1001000/1001000 - 1000000/1001000

= 1000/1001000

= 1/1001

1000/1001 - 999/1000 = 1000000/1001000 - 999999/1001000

= 1/1001000

Since the difference between 1000/1001 and 999/1000 is much smaller than the difference between 1 and 1000/1001, 1000/1001 is closer to 999/1000 = 0.999 than any other choice.

Answer: C
_________________

Jeffery Miller
Head of GMAT Instruction

GMAT Quant Self-Study Course
500+ lessons 3000+ practice problems 800+ HD solutions

Re: Which of the following is closest to (1)/(1.001)?   [#permalink] 15 May 2017, 16:26
Display posts from previous: Sort by

Which of the following is closest to (1)/(1.001)?

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| 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®.