GMAT Changed on April 16th - Read about the latest changes here

It is currently 27 May 2018, 12:27

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

6.4 is what percent of 16,000? is it asking 6.4 *x%=16000?

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

Hide Tags

Intern
Intern
avatar
Joined: 13 Nov 2010
Posts: 22
6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 23 Nov 2010, 22:50
6.4 is what percent of 16,000?


i am confused about the notion. does it mean 6.4 *x% = 16000? or 6.4*x=16000? the first x will equal to 100 times the second x.

thanks!
Intern
Intern
User avatar
Joined: 26 Nov 2009
Posts: 42
Location: India
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 23 Nov 2010, 22:56
I think answer is 2500.
I used 6.4 * x/100 = 16000
_________________

When going gets tough, tough gets going.........

2 KUDOS received
SVP
SVP
User avatar
Status: Three Down.
Joined: 09 Jun 2010
Posts: 1869
Concentration: General Management, Nonprofit
GMAT ToolKit User
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 23 Nov 2010, 23:05
2
This post received
KUDOS
Assume a variable. It's saying 6.4 is x% of 16,000.

\(6.4 = \frac{x}{100} * 16,000\)

This means that \(x = \frac{6.4*100}{16000}= \frac{640}{16000} = \frac{8}{200} = 0.04\)

So, 6.4 is 0.04% of 16,000.
Intern
Intern
User avatar
Joined: 26 Nov 2009
Posts: 42
Location: India
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 23 Nov 2010, 23:09
Oh I got confused, A common Gmat-percentage trap.....
_________________

When going gets tough, tough gets going.........

Intern
Intern
avatar
Joined: 13 Nov 2010
Posts: 22
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 24 Nov 2010, 08:19
6.4 is what percent of 16,000?
0.004%

0.04%
0.4%
4%
4.4%

why is the answer 0.04%? shouldnt the answer be 4% then?

i am just confused on this expression...
thanks!
Expert Post
2 KUDOS received
Veritas Prep GMAT Instructor
User avatar
P
Joined: 16 Oct 2010
Posts: 8078
Location: Pune, India
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 24 Nov 2010, 10:07
2
This post received
KUDOS
Expert's post
yufenshi wrote:
6.4 is what percent of 16,000?


i am confused about the notion. does it mean 6.4 *x% = 16000? or 6.4*x=16000? the first x will equal to 100 times the second x.

thanks!


Look at the following structures:
1. a is what percent of b?
2. What percent of a is b?

Rule of thumb1: Where you encounter 'is', there you put '='.
Rule of thumb2: Where they say 'what percent', there you put 'x%' and then find x.

1. a = x% of b = (x/100) * b
2. x% of a = b = (x/100) * b

The question says: 6.4 is what percent of 16,000?
6.4 = x% of 16000
6.4 = (x/100) * 16000
x = 6.4/160 = 0.04

Answer: 0.04%
_________________

Karishma
Veritas Prep | GMAT Instructor
My Blog

Get started with Veritas Prep GMAT On Demand for $199

Veritas Prep Reviews

Senior Manager
Senior Manager
avatar
Joined: 25 May 2010
Posts: 306
Location: United States
Concentration: Strategy, Finance
Schools: CBS '14 (A)
GMAT 1: 590 Q47 V25
GMAT 2: 560 Q47 V20
GMAT 3: 600 Q47 V25
GMAT 4: 680 Q49 V34
GMAT ToolKit User Reviews Badge
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 24 Nov 2010, 10:11
X=(6.4/16000)*100
=>X=6.4/160
=>X=.04%
_________________

"Whether You Think You Can or Can't, You're Right"--Henry Ford
680 Debrief
600 Debrief
590 Debrief
My GMAT Journey

Kaplan GMAT Instructor
User avatar
Joined: 21 Jun 2010
Posts: 145
Location: Toronto
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 24 Nov 2010, 18:57
yufenshi wrote:
6.4 is what percent of 16,000?
0.004%

0.04%
0.4%
4%
4.4%

why is the answer 0.04%? shouldnt the answer be 4% then?

i am just confused on this expression...
thanks!


On this type of question, you can use common sense to double check your answer (and even to solve the question).

Looking at the choices, we see that we're really being tested on where to put the decimal place. Accordingly, we can estimate to solve.

We can quickly determine that 1% of 16000 is 160. Well, 6.4 is considerably less than 160, so 6.4 must be less than 1% of 16000; accordingly, 4% is way too much.

Along the same lines:

.1% of 16000 is 16
.01% of 16000 is 1.6

1.6 < 6.4 < 16, so the correct answer must be between 0.01% and 0.1%... choose (B)!
Expert Post
Top Contributor
SVP
SVP
User avatar
P
Joined: 12 Sep 2015
Posts: 2478
Location: Canada
Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000? [#permalink]

Show Tags

New post 12 Jan 2018, 08:44
Expert's post
Top Contributor
Here's the full question:

Quote:
6.4 is what percent of 16,000?

A) 0.0004%
B) 0.04%
C) 0.4%
D) 4%
E) 4.4%


10% of 16,000 = 1600
1% of 16,000 = 160
0.1% of 16,000 = 16
0.01% of 16,000 = 1.6

Since 6.4 is BETWEEN 1.6 and 16, we can conclude that the correct answer is BETWEEN 0.01% and 0.1%

0.04% is the only answer choice that is between 0.01% and 0.1%, so the correct answer is


Cheers,
Brent
_________________

Brent Hanneson – Founder of gmatprepnow.com

Image

Re: 6.4 is what percent of 16,000? is it asking 6.4 *x%=16000?   [#permalink] 12 Jan 2018, 08:44
Display posts from previous: Sort by

6.4 is what percent of 16,000? is it asking 6.4 *x%=16000?

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


cron

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