Find all School-related info fast with the new School-Specific MBA Forum

It is currently 22 Oct 2014, 04:44

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.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

If the speed of X meters per second is equivalent to the

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
3 KUDOS received
Senior Manager
Senior Manager
avatar
Status: D-Day is on February 10th. and I am not stressed
Affiliations: American Management association, American Association of financial accountants
Joined: 12 Apr 2011
Posts: 276
Location: Kuwait
Schools: Columbia university
Followers: 4

Kudos [?]: 60 [3] , given: 52

If the speed of X meters per second is equivalent to the [#permalink] New post 03 Feb 2012, 07:24
3
This post received
KUDOS
3
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

76% (01:53) correct 24% (01:19) wrong based on 230 sessions
If the speed of X meters per second is equivalent to the speed of Y kilometers per hour, what is Y in terms of X? (1 kilometer=1000 meters)

A. 15x/18
B. 6x/5
C. 18x/5
D. 60x
E. 3600000x

can someone explain please, and what is the quickest way to aproach this type of question
[Reveal] Spoiler: OA

_________________

Sky is the limit

Expert Post
3 KUDOS received
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 23369
Followers: 3607

Kudos [?]: 28758 [3] , given: 2846

Re: x meters vs y kilometers [#permalink] New post 03 Feb 2012, 07:32
3
This post received
KUDOS
Expert's post
1
This post was
BOOKMARKED
If the speed of X meters per second is equivalent to the speed of Y kilometers per hour, what is Y in terms of X? (1 kilometer=1000 meters)

A. 15x/18
B. 6x/5
C. 18x/5
D. 60x
E. 3600000x

X meters per second -->
--> 3,600X meters per hour (as there are 3,600 seconds in one hour);
--> 3,600X/1,000=18X/5 kilometers per hour (as there are 1,000 meters in one kilometer).

Answer: C.

OR: if you are not comfortable with above manipulations with variable X then you can assume x to be equal to some #: let x=10.

Speed = 10 meters per second -->
--> 10*3,600=36,000 meters per hour -->
--> 36,000/1000=36 kilometers per hour.

So, if x=10, then y=36. Plug x=10 into the answer choices, the one which give 36 will be the correct answer:
A. 15x/18=150/18<36;
B. 6x/5=60/5=12;
C. 18x/5=36 correct choice;
D. 60x=600;
E. 3,600,000x=36,000,000.

Answer: C.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

Expert Post
2 KUDOS received
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 23369
Followers: 3607

Kudos [?]: 28758 [2] , given: 2846

Re: If the speed of X meters per second is equivalent to the [#permalink] New post 30 Oct 2012, 09:07
2
This post received
KUDOS
Expert's post
2
This post was
BOOKMARKED
danzig wrote:
Bunuel, is this a word problem or what tipe of problem is?
Do you have a link to find more of these problems, please?


It's a conversion problem. Below are some similar questions to practice:

if-an-object-travels-100-feet-in-2-seconds-what-is-the-103364.html
the-rear-wheels-of-a-car-crossed-a-certain-line-0-5-second-135753.html
a-train-traveling-at-a-constant-speed-down-a-straight-track-87124.html
a-welder-received-an-order-to-make-a-1-million-liter-126154.html
a-car-traveling-at-a-certain-constant-speed-takes-2-seconds-126658.html
if-an-automobile-averaged-22-5-miles-per-gallon-of-gasoline-109083.html
if-1-kilometer-is-approximately-0-6-mile-which-of-the-140731.html
measuring-standards-conversion-106516.html

Hope it helps.
_________________

NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

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?
25 extra-hard Quant Tests

Get the best GMAT Prep Resources with GMAT Club Premium Membership

1 KUDOS received
Manager
Manager
User avatar
Joined: 24 Jan 2013
Posts: 81
Followers: 5

Kudos [?]: 68 [1] , given: 6

Re: If the speed of X meters per second is equivalent to the [#permalink] New post 19 Mar 2013, 15:23
1
This post received
KUDOS
If the speed of x meters per second is equivalent to the speed of y kilometers per hour, what is y in terms of x? (1 kilometer=1000meters).

y*\frac{kilometers}{hour}=x*\frac{meters}{seconds}

y*\frac{1\;kilometer}{1\; hour}*\frac{1000 \;meters}{1 \;kilometer}*\frac{1\; hour}{3600 \;seconds}=x*\frac{meters}{seconds}

y*\frac{1000 \;meters}{3600 \;seconds}=x*\frac{meters}{seconds} --------> y=\frac{3600}{1000}*x=\frac{18}{5}*x

Answer C
_________________

Does this post deserve KUDOS?

Free Prep: Self-prepare GMAT for free and GMAT Math tips for free
Free Flashcards: Free GMAT Flashcards

More: "All I wish someone had told me about GMAT beforehand"
There are many things you want to know before doing the GMAT exam (how is exam day, what to expect, how to think, to do's...), and you have them in this blog, in a simple way

Senior Manager
Senior Manager
avatar
Status: D-Day is on February 10th. and I am not stressed
Affiliations: American Management association, American Association of financial accountants
Joined: 12 Apr 2011
Posts: 276
Location: Kuwait
Schools: Columbia university
Followers: 4

Kudos [?]: 60 [0], given: 52

Re: If the speed of X meters per second is equivalent to the [#permalink] New post 03 Feb 2012, 09:13
thanks alot. I am more comfortable working with the second approach, I needed someone to do it with plugging in approach. Thanks alot
_________________

Sky is the limit

Manager
Manager
avatar
Joined: 11 Aug 2012
Posts: 137
Schools: HBS '16, Stanford '16
Followers: 0

Kudos [?]: 30 [0], given: 16

Re: If the speed of X meters per second is equivalent to the [#permalink] New post 30 Oct 2012, 07:48
Bunuel, is this a word problem or what tipe of problem is?
Do you have a link to find more of these problems, please?
Senior Manager
Senior Manager
User avatar
Status: Prevent and prepare. Not repent and repair!!
Joined: 13 Feb 2010
Posts: 278
Location: India
Concentration: Technology, General Management
GPA: 3.75
WE: Sales (Telecommunications)
Followers: 9

Kudos [?]: 25 [0], given: 282

Re: If the speed of X meters per second is equivalent to the [#permalink] New post 16 Nov 2012, 02:36
This is a sub-600 question.
_________________

I've failed over and over and over again in my life and that is why I succeed--Michael Jordan
Kudos drives a person to better himself every single time. So Pls give it generously
Wont give up till i hit a 700+

Senior Manager
Senior Manager
User avatar
Joined: 13 May 2013
Posts: 476
Followers: 1

Kudos [?]: 58 [0], given: 134

Re: If the speed of X meters per second is equivalent to the [#permalink] New post 02 Aug 2013, 10:05
If the speed of X meters per second is equivalent to the speed of Y kilometers per hour, what is Y in terms of X? (1 kilometer=1000 meters)

We need to find an equation with x in the answer...
convert all measurements so they are alike (i.e. convert km to m, seconds to hours, etc)

Speed = x/t
x meters/second
(3600) x meters/hour

Speed = y/t
y KM/hour
Speed = y(1000m)/hour

y(1000meters)/hour = (3600) x meters/hour

y(1000)/1hour = x(3600) / 1 hour
y(1000) = x(3600)
y = 3.6x

Answer: C. 18x/5
CEO
CEO
User avatar
Joined: 09 Sep 2013
Posts: 2825
Followers: 206

Kudos [?]: 42 [0], given: 0

Premium Member
Re: If the speed of X meters per second is equivalent to the [#permalink] New post 02 Sep 2014, 20:27
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.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

VP
VP
User avatar
Status: The Best Or Nothing
Joined: 27 Dec 2012
Posts: 1086
Location: India
Concentration: General Management, Technology
WE: Information Technology (Computer Software)
Followers: 6

Kudos [?]: 303 [0], given: 170

Re: If the speed of X meters per second is equivalent to the [#permalink] New post 02 Sep 2014, 21:40
x meters in 1 second i.e

\frac{x}{1000} Kms in 1 Second i.e

\frac{x}{1000} Kms in \frac{1}{60} Minutes i.e

\frac{x}{1000} Kms in \frac{1}{3600} Hour i.e

\frac{x}{1000} * 3600 in 1 Hr = Y

y = \frac{18x}{5}

Answer = C
_________________

Kindly press "+1 Kudos" to appreciate :)

Re: If the speed of X meters per second is equivalent to the   [#permalink] 02 Sep 2014, 21:40
    Similar topics Author Replies Last post
Similar
Topics:
1 Experts publish their posts in the topic If the speed of X meters per second is equivalent to the spe vannbj 3 14 May 2010, 07:49
5 Experts publish their posts in the topic If the speed of X meters per second is equivalent to the spe scorpio7 13 04 Jun 2009, 20:39
If the speed of x meters per second is equivalent to the ldpedroso 1 08 Jun 2008, 11:37
If the speed of x meters per second is equivalent to the SimaQ 4 25 Feb 2006, 05:50
If the speed of x meters per second is equivalent to the rahulraao 4 11 Oct 2005, 23:42
Display posts from previous: Sort by

If the speed of X meters per second is equivalent to the

  Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group and phpBB SEO

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®.