Forum Home > GMAT > Quantitative > Problem Solving (PS)
Events & Promotions
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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Jul 2710:00 AM PDT
-11:00 AM PDT
Are you struggling with the GMAT verbal section? Do tricky questions and lengthy passages overwhelm you? Don't worry—I've got you covered! In this video, I'll provide a detailed, actionable plan to help you significantly boost your verbal score.
Jul 2711:00 AM IST
-01:00 PM IST
Attend this session to learn how to Deconstruct arguments, Pre-Think Author’s Assumptions, and apply Negation Test.
Jul 2508:00 AM EDT
-11:59 PM EDT
More and more TTP students are earning impressive scores on the GMAT. Now is the perfect time to join the many GMAT students who made the switch to TTP and surpassed their wildest expectations on test day.- Jul 28
10:00 AM PDT
-11:00 AM PDT
We will learn how to guess an answer choice better on the GMAT. If you are running out of time and want to guess on a few questions, these effective techniques will help you in making a smart guess. - Jul 28
11:00 AM IST
-01:00 PM IST
Attend this free GMAT Algebra Webinar and learn how to master the most challenging Inequalities and Absolute Value problems with ease. - Jul 31
05:55 AM PDT
-12:30 PM PDT
MBA Application Walkthrough and Essay Review. You will have a chance to hear from experts covering the Top 15 MBA programs, covering details of the application and essays. 
Jul 3110:00 AM EDT
-11:59 PM PDT
Save 20% on Target Test Prep and Score in the 100th Percentile in GMAT Verbal! Our course uses techniques such as topical study and spaced repetition to maximize knowledge retention and make studying simple and fun.
Three automobiles travel distances that are in the ratios of 1:2:3.
[#permalink]
01 Dec 2018, 09:06
01 Dec 2018, 09:06
2
Kudos
27
Bookmarks
Show timer
00:00
A
B
C
D
E
Difficulty:
15%
(low)
Question Stats:
80% (01:33) correct
20%
(01:39)
wrong
based on 724
sessions
Three automobiles travel distances that are in the ratios of 1:2:3. If the ratios of the traveling times over these distances for these automobiles are 3:2:1 in the same respective order, what are the ratios of their respective average speeds?
(A) 1:1:1
(B) 1:3:3
(C) 1:3:9
(D) 3:2:1
(E) 3:4:3
(A) 1:1:1
(B) 1:3:3
(C) 1:3:9
(D) 3:2:1
(E) 3:4:3
Director
Joined: 18 Jul 2018
Posts: 918
Given Kudos: 95
Location: India
Concentration: Operations, General Management
Schools: IIMB EPGP'22 (M)
GMAT 1: 590 Q46 V25 
GMAT 2: 690 Q49 V34
WE:Engineering (Energy and Utilities)
Re: Three automobiles travel distances that are in the ratios of 1:2:3.
[#permalink]
01 Dec 2018, 09:20
01 Dec 2018, 09:20
1
Kudos
3
Bookmarks
Distance Ratio = 1x:2x:3x
Time taken ratio = 3x:2x:1x
Average speed = Total Distance/Time = 1/3 : 2/2 : 3/1
Taking LCM gives 1:3:9.
C is the answer.
Time taken ratio = 3x:2x:1x
Average speed = Total Distance/Time = 1/3 : 2/2 : 3/1
Taking LCM gives 1:3:9.
C is the answer.
Re: Three automobiles travel distances that are in the ratios of 1:2:3.
[#permalink]
04 Dec 2018, 04:26
04 Dec 2018, 04:26
Afc0892 wrote:
Distance Ratio = 1x:2x:3x
Time taken ratio = 3x:2x:1x
Average speed = Total Distance/Time = 1/3 : 2/2 : 3/1
Taking LCM gives 1:3:9.
C is the answer.
Time taken ratio = 3x:2x:1x
Average speed = Total Distance/Time = 1/3 : 2/2 : 3/1
Taking LCM gives 1:3:9.
C is the answer.
Can you explain this a little further? How did you figure out you need to get the LCM? Also, how did you come up with the final ratio?
