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

 It is currently 15 Dec 2018, 08:09

### 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

## Events & Promotions

###### Events & Promotions in December
PrevNext
SuMoTuWeThFrSa
2526272829301
2345678
9101112131415
16171819202122
23242526272829
303112345
Open Detailed Calendar
• ### \$450 Tuition Credit & Official CAT Packs FREE

December 15, 2018

December 15, 2018

10:00 PM PST

11:00 PM PST

Get the complete Official GMAT Exam Pack collection worth \$100 with the 3 Month Pack (\$299)
• ### FREE Quant Workshop by e-GMAT!

December 16, 2018

December 16, 2018

07:00 AM PST

09:00 AM PST

Get personalized insights on how to achieve your Target Quant Score.

# If x is 20 percent more than y and y is 50 percent less than z, then x

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

### Hide Tags

Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Posts: 6639
GMAT 1: 760 Q51 V42
GPA: 3.82
If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

02 May 2016, 04:16
00:00

Difficulty:

5% (low)

Question Stats:

91% (01:20) correct 9% (01:33) wrong based on 99 sessions

### HideShow timer Statistics

If x is 20 percent more than y and y is 50 percent less than z, then x is what percent of z?

A. 500%
B. 250%
C. 500/3%
D. 125%
E. 60%

* A solution will be posted in two days.

_________________

MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only \$99 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

Manager
Joined: 26 Mar 2016
Posts: 60
Location: India
Concentration: Strategy, General Management
GMAT 1: 720 Q50 V36
GRE 1: Q166 V147
GPA: 3.3
WE: Other (Consulting)
Re: If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

02 May 2016, 04:42
2
MathRevolution wrote:
If x is 20 percent more than y and y is 50 percent less than z, then x is what percent of z?

A. 500%
B. 250%
C. 500/3%
D. 125%
E. 60%

* A solution will be posted in two days.

Lets take values of x,y,z which can satisfy given equations.

Let Z= 200, so Y becomes 100 ( since Y is 50% less than Z),
X becomes 120 ( since 20% more than Y)

now req is (X/Z) * 100 = (120/200) *100 = 60 %
_________________

23 Kudos left to unlock next level. Help me by Contributing one for cause .. Please

My failed GMAT experience ... https://gmatclub.com/forum/gmat-bad-experience-640-need-suggestions-on-verbal-improvement-251308.html

My review on EmpowerGMAT : https://gmatclub.com/reviews/comments/empowergmat-online-course-345355767

Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4277
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)
Re: If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

02 May 2016, 10:35
1
MathRevolution wrote:
If x is 20 percent more than y and y is 50 percent less than z, then x is what percent of z?

A. 500%
B. 250%
C. 500/3%
D. 125%
E. 60%

* A solution will be posted in two days.

Z = 100 ; Y = 50 so X = 60

X as % of Z = 60/100 * 100 => 60%

Answer will be (E)
_________________

Thanks and Regards

Abhishek....

PLEASE FOLLOW THE RULES FOR POSTING IN QA AND VA FORUM AND USE SEARCH FUNCTION BEFORE POSTING NEW QUESTIONS

How to use Search Function in GMAT Club | Rules for Posting in QA forum | Writing Mathematical Formulas |Rules for Posting in VA forum | Request Expert's Reply ( VA Forum Only )

Math Revolution GMAT Instructor
Joined: 16 Aug 2015
Posts: 6639
GMAT 1: 760 Q51 V42
GPA: 3.82
Re: If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

04 May 2016, 06:27
1
From the question, we get x=1.2y and y=0.5z. By substitution, we can get x=1.2y=1.2(0.5)z=0.6z. Hence, the answer is 60% and E is the correct answer choice.

- Forget conventional ways of solving math questions. In DS, Variable approach is the easiest and quickest way to find the answer without actually solving the problem. Remember equal number of variables and independent equations ensures a solution.
_________________

MathRevolution: Finish GMAT Quant Section with 10 minutes to spare
The one-and-only World’s First Variable Approach for DS and IVY Approach for PS with ease, speed and accuracy.
"Only \$99 for 3 month Online Course"
"Free Resources-30 day online access & Diagnostic Test"
"Unlimited Access to over 120 free video lessons - try it yourself"

Director
Joined: 24 Nov 2015
Posts: 521
Location: United States (LA)
Re: If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

29 Aug 2016, 04:46
1
consider z = 100
so y is 50 % of z = 50
x is 20 % more than y = 1.2 * 50 = 60
x is 60 % of z
correct answer - E
Current Student
Joined: 12 Aug 2015
Posts: 2627
Schools: Boston U '20 (M)
GRE 1: Q169 V154
Re: If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

30 Aug 2016, 13:15
As mentioned above this problem is fairly easy by using by z=100
For Pro Algebra users such as myself , here is how i did it
x=y*[1+20/100]
50/100*z=y

Equation 1 divided by equation 2 results in=>
2x/y=120/100=> x/y=60/100
now we are asked => x/z*100 = (60/100)*100=60
SMASH that E

P.S => Its way too easy by number plugging
_________________

MBA Financing:- INDIAN PUBLIC BANKS vs PRODIGY FINANCE!

Getting into HOLLYWOOD with an MBA!

The MOST AFFORDABLE MBA programs!

STONECOLD's BRUTAL Mock Tests for GMAT-Quant(700+)

AVERAGE GRE Scores At The Top Business Schools!

VP
Joined: 07 Dec 2014
Posts: 1128
Re: If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

30 Aug 2016, 13:54
x/y=12/10
y/z=10/20
x/z=12/20=60%
Non-Human User
Joined: 09 Sep 2013
Posts: 9164
Re: If x is 20 percent more than y and y is 50 percent less than z, then x  [#permalink]

### Show Tags

14 Oct 2017, 07:08
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 x is 20 percent more than y and y is 50 percent less than z, then x &nbs [#permalink] 14 Oct 2017, 07:08
Display posts from previous: Sort by

# If x is 20 percent more than y and y is 50 percent less than z, then x

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

 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®.