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

 It is currently 16 Feb 2020, 11:07 ### 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.  # Which of the following is closest in value to 0.5729?

Author Message
TAGS:

### Hide Tags

Math Expert V
Joined: 02 Sep 2009
Posts: 61189
Which of the following is closest in value to 0.5729?  [#permalink]

### Show Tags 00:00

Difficulty:   55% (hard)

Question Stats: 59% (01:48) correct 41% (01:46) wrong based on 123 sessions

### HideShow timer Statistics

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. $$\frac{1144}{2*10^4}$$

_________________
Veritas Prep GMAT Instructor V
Joined: 16 Oct 2010
Posts: 10097
Location: Pune, India
Re: Which of the following is closest in value to 0.5729?  [#permalink]

### Show Tags

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

Intern  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

1
C as on solving C we get 0.5725 which is the closest of all
VP  P
Joined: 12 Dec 2016
Posts: 1452
Location: United States
GMAT 1: 700 Q49 V33
GPA: 3.64
Re: Which of the following is closest in value to 0.5729?  [#permalink]

### Show Tags

1
first, use the power of observation, now ones can pick 1144 and divide the number by 2, the rest is easy. => C
Target Test Prep Representative V
Status: Founder & CEO
Affiliations: Target Test Prep
Joined: 14 Oct 2015
Posts: 9415
Location: United States (CA)
Re: Which of the following is closest in value to 0.5729?  [#permalink]

### Show Tags

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.

_________________

# Scott Woodbury-Stewart

Founder and CEO

Scott@TargetTestPrep.com

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. Re: Which of the following is closest in value to 0.5729?   [#permalink] 09 Dec 2019, 17:38
Display posts from previous: Sort by

# Which of the following is closest in value to 0.5729?  