Jun 18 09:00 PM EDT  10:00 PM EDT Strategies and techniques for approaching featured GMAT topics. Tuesday, June 18th at 9 pm ET Jun 18 10:00 PM PDT  11:00 PM PDT Send along your receipt from another course or book to info@empowergmat.com and EMPOWERgmat will give you 50% off the first month of access OR $50 off the 3 Month Plan Only available to new students Ends: June 18th Jun 19 10:00 PM PDT  11:00 PM PDT Join a FREE 1day workshop and learn how to ace the GMAT while keeping your fulltime job. Limited for the first 99 registrants. Jun 22 07:00 AM PDT  09:00 AM PDT Attend this webinar and master GMAT SC in 10 days by learning how meaning and logic can help you tackle 700+ level SC questions with ease. Jun 23 07:00 AM PDT  09:00 AM PDT Attend this webinar to learn a structured approach to solve 700+ Number Properties question in less than 2 minutes.
Author 
Message 
TAGS:

Hide Tags

Intern
Joined: 15 Mar 2013
Posts: 19
Location: Canada
Concentration: International Business, Finance
WE: Information Technology (Consulting)

If y is 80% greater than x, than x is what % less than y?
[#permalink]
Show Tags
Updated on: 11 Nov 2013, 20:14
Question Stats:
77% (01:37) correct 23% (01:37) wrong based on 254 sessions
HideShow timer Statistics
If y is 80% greater than x, than x is what % less than y? (A) 20 (B) 25 (C) 33 1/3 (D) 44 4/9 (E) 80
Official Answer and Stats are available only to registered users. Register/ Login.
Originally posted by PatrickS on 11 Nov 2013, 20:05.
Last edited by PatrickS on 11 Nov 2013, 20:14, edited 2 times in total.



Intern
Joined: 15 Mar 2013
Posts: 19
Location: Canada
Concentration: International Business, Finance
WE: Information Technology (Consulting)

Re: If y is 80% greater than x
[#permalink]
Show Tags
11 Nov 2013, 20:10
This problem looks simple enough yet i cannot understand what i am doing wrong: \(y=x*\frac{180}{100}\) \(y=x*\frac{18}{10}\) \(y=x*\frac{9}{5}\) \(x=y*\frac{5}{9}\) \(x= y* 5* 0.11111\) \(x= y* 0.555\) > \(x= ~ 55.5% of y\) Help...
Attachments
File comment: I fully understand this explanation, i don't get why my logic is wrong
% Question.jpg [ 41.15 KiB  Viewed 50718 times ]



Director
Affiliations: GMATQuantum
Joined: 19 Apr 2009
Posts: 609

Re: If y is 80% greater than x
[#permalink]
Show Tags
11 Nov 2013, 22:08
PatrickS,
Everything you have done is correct, and your answer would be correct if they had asked x is what percent of y, which is indeed 55.55%. However, the question is asking for x is what percent less than y, which is equal to [(yx)/y]*100 or 44.44 percent.
Dabral



Intern
Joined: 15 Mar 2013
Posts: 19
Location: Canada
Concentration: International Business, Finance
WE: Information Technology (Consulting)

Re: If y is 80% greater than x
[#permalink]
Show Tags
12 Nov 2013, 06:34
dabral wrote: PatrickS,
Everything you have done is correct, and your answer would be correct if they had asked x is what percent of y, which is indeed 55.55%. However, the question is asking for x is what percent less than y, which is equal to [(yx)/y]*100 or 44.44 percent.
Dabral Silly me... Thank you for clarifying



SVP
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1793
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)

Re: If y is 80% greater than x, than x is what % less than y?
[#permalink]
Show Tags
12 Nov 2014, 02:44
\(y = \frac{180}{100} * x\) \(x = \frac{100}{180} * y\) Percentage \(= \frac{100*100}{180} = \frac{500}{9} = 55.55\) Percentage less = 100  55.55 = 44.45 Answer = D
_________________
Kindly press "+1 Kudos" to appreciate



Intern
Joined: 05 Sep 2013
Posts: 9
Location: Georgia

Re: If y is 80% greater than x, than x is what % less than y?
[#permalink]
Show Tags
12 Nov 2014, 06:32
if y=180 x=100 180100=80
90 is 50% of y. 80 is little less than 90 so answer D 44 4/9



Math Expert
Joined: 02 Sep 2009
Posts: 55670

If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
23 Mar 2015, 06:40
If y is 80 percent greater than x, then x is what percent less than y? A. 20 B. 25 C. 33 1/3 D. 44 4/9 E. 80 Kudos for a correct solution.
_________________



Current Student
Joined: 23 May 2013
Posts: 186
Location: United States
Concentration: Technology, Healthcare
GPA: 3.5

If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
23 Mar 2015, 07:46
Bunuel wrote: If y is 80 percent greater than x, then x is what percent less than y?
A. 20 B. 25 C. 33 1/3 D. 44 4/9 E. 80
Kudos for a correct solution. \(y = 1.8x\) \(y = \frac{9}{5}*x\); therefore \(x = \frac{5}{9}*y\) Therefore, x is fiveninths of y, which means x is fourninths less than y. . \(\frac{4}{9}\) equates to 44.44 percent. Answer: D



EMPOWERgmat Instructor
Status: GMAT Assassin/CoFounder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 14351
Location: United States (CA)

If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
24 Mar 2015, 22:53
Hi All, This is a perfect question for TESTing VALUES. We're told that Y is 80% GREATER than X..... Let's TEST... X = 100 Y = 180 The question then asks "X is what percent LESS than Y?" When a question asks for "percent greater" or "percent less", then the Percentage Change Formula is required. Percentage Change = (New  Old)/Old = Difference/Original Here, the "new" number is 100 and the "old" number is 180 (you could also say that the difference is 80 and the 'original' number is 180). Depending on which version of the formula you use, your answer might look a little different, but the end "meaning" is the same.... (100  180)/180 = 80/180 = 8/18 = 4/9 = 44.4444% The 'minus' sign means "less" OR 80/180 = 8/18 = 4/9 = 44.444% Either way, the "meaning" is the same: X is 44.4444% less than Y. Final Answer: GMAT assassins aren't born, they're made, Rich
_________________
760+: Learn What GMAT Assassins Do to Score at the Highest Levels Contact Rich at: Rich.C@empowergmat.com*****Select EMPOWERgmat Courses now include ALL 6 Official GMAC CATs!*****
Rich Cohen
CoFounder & GMAT Assassin
Special Offer: Save $75 + GMAT Club Tests Free
Official GMAT Exam Packs + 70 Pt. Improvement Guarantee www.empowergmat.com/



Manager
Joined: 06 Jan 2014
Posts: 56

Re: If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
25 Mar 2015, 01:09
Since we need to find X percent less than Y yx/y = (1.8xx)/1.8x = 44(4/9) Ans : D
_________________
______________________________ Liked the Post !!!! KUDOs Plzzzzz



SVP
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1793
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)

Re: If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
25 Mar 2015, 01:59
Answer = D. 44 4/9 Say x = 100, then y = 180 Percent less \(= 100*\frac{80}{180} = 44 \frac{4}{9}\)
_________________
Kindly press "+1 Kudos" to appreciate



Math Expert
Joined: 02 Sep 2009
Posts: 55670

Re: If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
30 Mar 2015, 03:19
Bunuel wrote: If y is 80 percent greater than x, then x is what percent less than y?
A. 20 B. 25 C. 33 1/3 D. 44 4/9 E. 80
Kudos for a correct solution. MAGOOSH OFFICIAL SOLUTION:Attachment:
yis80percentgreaterthanx_text.PNG [ 13.06 KiB  Viewed 47620 times ]
_________________



SVP
Joined: 06 Nov 2014
Posts: 1877

Re: If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
31 Mar 2015, 12:39
Bunuel wrote: If y is 80 percent greater than x, then x is what percent less than y?
A. 20 B. 25 C. 33 1/3 D. 44 4/9 E. 80
Kudos for a correct solution. Let x = 100 So y = 180 We want percentage change. So, (100180)/180 = 44.44% = 44 4/9% lesser tha y. Hence option (D).  Optimus Prep's GMAT On Demand course for only $299 covers all verbal and quant. concepts in detail. Visit the following link to get your 7 days free trial account: http://www.optimusprep.com/gmatondemandcourse



Current Student
Joined: 12 Aug 2015
Posts: 2610

If y is 80 percent greater than x, then x is what percent less than y?
[#permalink]
Show Tags
30 Aug 2016, 14:38
Hi Bunuel Please Merge your Question with this one.=> ifyis80greaterthanxthanxiswhatlessthany163031.html?fl=similar*** REPEATED QUESTION. IT has already been Discussed
_________________



Math Expert
Joined: 02 Sep 2009
Posts: 55670

Re: If y is 80% greater than x, than x is what % less than y?
[#permalink]
Show Tags
30 Aug 2016, 23:05
stonecold wrote: Hi Bunuel Please Merge your Question with this one.=> ifyis80greaterthanxthanxiswhatlessthany163031.html?fl=similar*** REPEATED QUESTION. IT has already been Discussed ______________ Done. Thank you.
_________________



Intern
Joined: 05 Sep 2015
Posts: 43

Re: If y is 80% greater than x, than x is what % less than y?
[#permalink]
Show Tags
30 Aug 2016, 23:31
y=180/100 x
x=5/9 y
y5/9y = 4/9 y
4/9 y *100 = 44 4/9
therefore option d.



Target Test Prep Representative
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2823

Re: If y is 80% greater than x, than x is what % less than y?
[#permalink]
Show Tags
19 Sep 2017, 15:46
PatrickS wrote: If y is 80% greater than x, than x is what % less than y?
(A) 20 (B) 25 (C) 33 1/3 (D) 44 4/9 (E) 80 We can create the following equation: y = 1.8x Thus: (x  y)/y * 100 = (x  1.8x)/1.8x * 100 = 0.8x/1.8x * 100 = 8/18 * 100 = 4/9 * 100 = 44 4/9 We see that x is 44 4/9 percent less than y. Answer: D
_________________
5star 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.



NonHuman User
Joined: 09 Sep 2013
Posts: 11393

Re: If y is 80% greater than x, than x is what % less than y?
[#permalink]
Show Tags
25 Sep 2018, 15:00
Hello from the GMAT Club BumpBot! Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up  doing my job. I think you may find it valuable (esp those replies with Kudos). Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________




Re: If y is 80% greater than x, than x is what % less than y?
[#permalink]
25 Sep 2018, 15:00






