GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 21 Sep 2018, 14:47

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

If 25 percent of 400 is 40 percent of x, then x =

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

Hide Tags

Math Expert
User avatar
V
Joined: 02 Sep 2009
Posts: 49300
If 25 percent of 400 is 40 percent of x, then x =  [#permalink]

Show Tags

New post 12 Oct 2017, 04:25
00:00
A
B
C
D
E

Difficulty:

  5% (low)

Question Stats:

96% (00:24) correct 4% (01:00) wrong based on 46 sessions

HideShow timer Statistics

Senior SC Moderator
avatar
V
Joined: 22 May 2016
Posts: 1978
Premium Member CAT Tests
If 25 percent of 400 is 40 percent of x, then x =  [#permalink]

Show Tags

New post 12 Oct 2017, 06:24
Bunuel wrote:
If 25 percent of 400 is 40 percent of x, then x =

(A) 65
(B) 160
(C) 250
(D) 260
(E) 440

Two steps sometimes makes it faster:

\(25\) percent of \(400\) =
\(.25(400)= 100\)

100 is 40 percent of x
\(100 = .4x\)
\(x =\frac{100}{.4} = 250\)

One step equation:
\(\frac{1}{4} (400) = \frac{2}{5}x\)
\(100 =\frac{2}{5}x\)
\(x = \frac{5}{2}* 100\)
\(x = 250\)

Answer
_________________

In the depths of winter, I finally learned
that within me there lay an invincible summer.

-- Albert Camus, "Return to Tipasa"

Target Test Prep Representative
User avatar
G
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2835
Re: If 25 percent of 400 is 40 percent of x, then x =  [#permalink]

Show Tags

New post 16 Oct 2017, 16:44
Bunuel wrote:
If 25 percent of 400 is 40 percent of x, then x =

(A) 65
(B) 160
(C) 250
(D) 260
(E) 440


We can create the following equation:

0.25(400) = 0.4x

100 = 0.4x

100/0.4 = x

250 = x

Answer: C
_________________

Jeffery Miller
Head of GMAT Instruction

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

Re: If 25 percent of 400 is 40 percent of x, then x = &nbs [#permalink] 16 Oct 2017, 16:44
Display posts from previous: Sort by

If 25 percent of 400 is 40 percent of x, then x =

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

Events & Promotions

PREV
NEXT


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®.