February 23, 2019 February 23, 2019 07:00 AM PST 09:00 AM PST Learn reading strategies that can help even nonvoracious reader to master GMAT RC. Saturday, February 23rd at 7 AM PT February 24, 2019 February 24, 2019 07:00 AM PST 09:00 AM PST Get personalized insights on how to achieve your Target Quant Score.
Author 
Message 
TAGS:

Hide Tags

Math Expert
Joined: 02 Sep 2009
Posts: 53066

If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
Show Tags
23 Jan 2017, 03:33
Question Stats:
80% (01:54) correct 20% (01:56) wrong based on 103 sessions
HideShow timer Statistics
If the number of cars in city X this year is 520,800 which is 24% more than there were in city X last year, how many cars were there in city X last year? A. 395,808 B. 420,000 C. 447,888 D. 496,800 E. 645,795
Official Answer and Stats are available only to registered users. Register/ Login.
_________________
New to the Math Forum? Please read this: Ultimate GMAT Quantitative Megathread  All You Need for Quant  PLEASE READ AND FOLLOW: 12 Rules for Posting!!! Resources: GMAT Math Book  Triangles  Polygons  Coordinate Geometry  Factorials  Circles  Number Theory  Remainders; 8. Overlapping Sets  PDF of Math Book; 10. Remainders  GMAT Prep Software Analysis  SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS)  Tricky questions from previous years.
Collection of Questions: PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.
What are GMAT Club Tests? Extrahard Quant Tests with Brilliant Analytics



Senior Manager
Joined: 19 Apr 2016
Posts: 274
Location: India
GMAT 1: 570 Q48 V22 GMAT 2: 640 Q49 V28
GPA: 3.5
WE: Web Development (Computer Software)

Re: If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
Show Tags
23 Jan 2017, 04:01
Bunuel wrote: If the number of cars in city X this year is 520,800 which is 24% more than there were in city X last year, how many cars were there in city X last year?
A. 395,808 B. 420,000 C. 447,888 D. 496,800 E. 645,795 lets X = original number of cars 24% more than X can be written as 1.24*X = 520800 X = 420000 Hence option B is correct



Target Test Prep Representative
Status: Head GMAT Instructor
Affiliations: Target Test Prep
Joined: 04 Mar 2011
Posts: 2827

Re: If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
Show Tags
25 Jan 2017, 10:18
Bunuel wrote: If the number of cars in city X this year is 520,800 which is 24% more than there were in city X last year, how many cars were there in city X last year?
A. 395,808 B. 420,000 C. 447,888 D. 496,800 E. 645,795 We are given that the number of cars in city X this year is 520,800, which is 24% more than there were in city X last year. If we let the number of cars in city X last year = c, we can create the following equation: 520,800 = 1.24c c = 420,000 Answer: B
_________________
Jeffery Miller
Head of GMAT Instruction
GMAT Quant SelfStudy Course
500+ lessons 3000+ practice problems 800+ HD solutions



Manager
Joined: 03 Jan 2017
Posts: 146

Re: If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
Show Tags
12 Mar 2017, 07:13
520 800=1,24*last year last year is 520800/1,24=420000



Board of Directors
Status: QA & VA Forum Moderator
Joined: 11 Jun 2011
Posts: 4391
Location: India
GPA: 3.5
WE: Business Development (Commercial Banking)

Re: If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
Show Tags
12 Mar 2017, 11:21
Bunuel wrote: If the number of cars in city X this year is 520,800 which is 24% more than there were in city X last year, how many cars were there in city X last year?
A. 395,808 B. 420,000 C. 447,888 D. 496,800 E. 645,795 \(\frac{520800}{124}*100\) \(= 420,000\) Thus, answer must be ( B ) 420,000
_________________
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 )



EMPOWERgmat Instructor
Status: GMAT Assassin/CoFounder
Affiliations: EMPOWERgmat
Joined: 19 Dec 2014
Posts: 13577
Location: United States (CA)

Re: If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
Show Tags
29 Nov 2017, 20:44
Hi All, We're told that the number of cars in city X this year is 520,800 and that total is 24% more than there were in city X last year. We're asked for the number of cars that were there in city X last year. While the numbers in this prompt are not 'pretty', the answer choices are 'spaced out' enough that we can do a bit of estimation and some 'brute force' math to get to the answer. To start, 24% of 100,000 = 24,000 (so a 24% increase would be 124,000 total cars). Thus, we can quickly map out increases of 100,000 cars... 200,000 + 48,000 = 248,000 300,000 + 72,000 = 372, 000 400,000 + 96,000 = 496,000 500,000 + 120,000 = 620,000 Since 520,800 is far closer to 496,000 than it is to 620,000, the total number of cars last year would be a bit more than 400,000. There's only one answer that matches... 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
Rich Cohen
CoFounder & GMAT Assassin
Special Offer: Save $75 + GMAT Club Tests Free
Official GMAT Exam Packs + 70 Pt. Improvement Guarantee www.empowergmat.com/
*****Select EMPOWERgmat Courses now include ALL 6 Official GMAC CATs!*****



Director
Joined: 13 Mar 2017
Posts: 703
Location: India
Concentration: General Management, Entrepreneurship
GPA: 3.8
WE: Engineering (Energy and Utilities)

Re: If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
Show Tags
29 Nov 2017, 21:41
Bunuel wrote: If the number of cars in city X this year is 520,800 which is 24% more than there were in city X last year, how many cars were there in city X last year?
A. 395,808 B. 420,000 C. 447,888 D. 496,800 E. 645,795 Number of cars in City X this year = 520,800 It is 24% more than there were in City X last year. So 520800 = 1.24 * cars last year Cars last year = 520,800/ 1.24 = 420,000 Answer B
_________________
CAT 2017 (98.95) & 2018 (98.91) : 99th percentiler UPSC Aspirants : Get my app UPSC Important News Reader from Play store.
MBA Social Network : WebMaggu
Appreciate by Clicking +1 Kudos ( Lets be more generous friends.) What I believe is : "Nothing is Impossible, Even Impossible says I'm Possible" : "Stay Hungry, Stay Foolish".




Re: If the number of cars in city X this year is 520,800 which is 24% more
[#permalink]
29 Nov 2017, 21:41






