GMAT Question of the Day: Daily via email | Daily via Instagram New to GMAT Club? Watch this Video

It is currently 19 Jan 2020, 17:43

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

Which of the following is closest in value to 0.5729?

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

Hide Tags

Find Similar Topics 
Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 60496
Which of the following is closest in value to 0.5729?  [#permalink]

Show Tags

New post 12 Jan 2018, 00:35
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

58% (01:48) correct 42% (01:47) wrong based on 120 sessions

HideShow timer Statistics

Intern
Intern
avatar
B
Joined: 30 May 2017
Posts: 36
GMAT 1: 730 Q49 V41
Re: Which of the following is closest in value to 0.5729?  [#permalink]

Show Tags

New post 12 Jan 2018, 01:00
1
C as on solving C we get 0.5725 which is the closest of all
VP
VP
avatar
P
Joined: 12 Dec 2016
Posts: 1466
Location: United States
GMAT 1: 700 Q49 V33
GPA: 3.64
GMAT ToolKit User
Re: Which of the following is closest in value to 0.5729?  [#permalink]

Show Tags

New post 12 Jan 2018, 01:06
1
first, use the power of observation, now ones can pick 1144 and divide the number by 2, the rest is easy. => C
Veritas Prep GMAT Instructor
User avatar
V
Joined: 16 Oct 2010
Posts: 9983
Location: Pune, India
Re: Which of the following is closest in value to 0.5729?  [#permalink]

Show Tags

New post 12 Jan 2018, 05:41
2
Bunuel wrote:
Which of the following is closest in value to 0.5729?

A. \(\frac{11.43}{2*10^2}\)

B. \(\frac{1144}{2*10^3}\)

C. \(\frac{1145}{20*10^2}\)

D. \(\frac{11.45}{2*10^2}\)

E. \(\frac{1144}{2*10^4}\)



You see that each option has 2 in the denominator. So multiply .5729 with 2 to get 1.1458.
Options (C) and (D) seem to be closest.

Option (C) has 1000 in the denominator so we get decimal at the right place. Answer (C)
_________________
Karishma
Veritas Prep GMAT Instructor

Learn more about how Veritas Prep can help you achieve a great GMAT score by checking out their GMAT Prep Options >
Target Test Prep Representative
User avatar
V
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 9053
Location: United States (CA)
Re: Which of the following is closest in value to 0.5729?  [#permalink]

Show Tags

New post 09 Dec 2019, 18:38
1
Bunuel wrote:
Which of the following is closest in value to 0.5729?

A. \(\frac{11.43}{2*10^2}\)

B. \(\frac{1144}{2*10^3}\)

C. \(\frac{1145}{20*10^2}\)

D. \(\frac{11.45}{2*10^2}\)

E. \(\frac{1144}{2*10^4}\)


We should see that 5,729 x 2 = 11,458. So 0.5729 = 5,729/10,000 = 11,458/20,000 = (1.1458 x 10^4)/(2 x 10^4) = (1.1458 x 10^3)/(2 x 10^3) = 1145.8/(2 x 10^3) ≈ 1146/(2 x 10^3), which is closest to Choice C.

Alternate Solution:

Since 0.5729 is a just a bit greater than 1/2, we are looking for the answer choice to reduce to about 1/2. Choice A is roughly 11/200, Choice D is about 11/200, and Choice E is about 1000/20,000, so we can eliminate them quickly.

Choice B is 1144/2,000, and Choice C is 1145/2,000, so we must do the quick division of each, obtaining 0.572 and 0.5725, respectively. We see that Choice C is closest to 0.5729.

Answer: C
_________________

Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com
TTP - Target Test Prep Logo
181 Reviews

5-star rated online GMAT quant
self study course

See why Target Test Prep is the top rated GMAT quant course on GMAT Club. Read Our Reviews

If you find one of my posts helpful, please take a moment to click on the "Kudos" button.

GMAT Club Bot
Re: Which of the following is closest in value to 0.5729?   [#permalink] 09 Dec 2019, 18:38
Display posts from previous: Sort by

Which of the following is closest in value to 0.5729?

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





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