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

It is currently 18 Sep 2018, 18:55

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

Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio

  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: 49206
Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio  [#permalink]

Show Tags

New post 19 Aug 2018, 09:23
00:00
A
B
C
D
E

Difficulty:

  25% (medium)

Question Stats:

87% (01:05) correct 13% (01:34) wrong based on 15 sessions

HideShow timer Statistics

Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio of red cars to orange cars on the lot. What could be the total number of blue, red, and orange cars on the lot?

(A) 38
(B) 39
(C) 40
(D) 41
(E) 42

_________________

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?
Extra-hard Quant Tests with Brilliant Analytics

Director
Director
User avatar
G
Joined: 20 Feb 2015
Posts: 728
Concentration: Strategy, General Management
Premium Member CAT Tests
Re: Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio  [#permalink]

Show Tags

New post 19 Aug 2018, 09:28
Bunuel wrote:
Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio of red cars to orange cars on the lot. What could be the total number of blue, red, and orange cars on the lot?

(A) 38
(B) 39
(C) 40
(D) 41
(E) 42


b/r = 2x/x

r/o= 6x/x

multiplying numerator and denominator in b/r by 6

b/r = 12x/6x

therefore
b:r:o=12x:6x:x

substituting x= 2
24:12:2
total = 38
A
Intern
Intern
User avatar
B
Joined: 25 Nov 2017
Posts: 28
Location: India
Schools: IIMA , IIMB, IIMC
GMAT 1: 590 Q47 V25
GMAT 2: 700 Q50 V34
GPA: 3.56
CAT Tests
Re: Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio  [#permalink]

Show Tags

New post 19 Aug 2018, 09:39
B:R=2:1, R:O= 6:1
=> B:R= 12:6, R:O= 6:1
=> B:R:O= 12:6:1
=> Total car= 19k, (k '+'constant)
=> Total number of car should be divisible by 19
=> Only option is 38, ans A

Posted from my mobile device
Re: Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio &nbs [#permalink] 19 Aug 2018, 09:39
Display posts from previous: Sort by

Autolot has a 2 : 1 ratio of blue cars to red cars and a 6 : 1 ratio

  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®.