Station Q is to the East of Station T. At 12 noon, a train s : GMAT Data Sufficiency (DS)
Check GMAT Club App Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

It is currently 03 Dec 2016, 07:59
GMAT Club Tests

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

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Station Q is to the East of Station T. At 12 noon, a train s

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

Hide Tags

Director
Director
User avatar
Status: Verbal Forum Moderator
Joined: 17 Apr 2013
Posts: 635
Location: India
GMAT 1: 710 Q50 V36
GMAT 2: 750 Q51 V41
GMAT 3: 790 Q51 V49
GPA: 3.3
Followers: 62

Kudos [?]: 407 [0], given: 297

Station Q is to the East of Station T. At 12 noon, a train s [#permalink]

Show Tags

New post 30 Sep 2013, 10:45
2
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

62% (02:19) correct 38% (01:08) wrong based on 174 sessions

HideShow timer Statistics

Station Q is to the East of Station T. At 12 noon, a train starts from Station Q and travels at a constant speed of x mph towards Station T. At 12 noon of the same day, another train starts from Station T and travels at a constant speed of y mph towards Station Q. At what time will the trains meet?

(1) y = 4x/3
(2) x = 100 mph
[Reveal] Spoiler: OA

_________________

Like my post Send me a Kudos :) It is a Good manner.
My Debrief: http://gmatclub.com/forum/how-to-score-750-and-750-i-moved-from-710-to-189016.html

1 KUDOS received
Manager
Manager
avatar
Joined: 20 Jun 2012
Posts: 105
Location: United States
Concentration: Finance, Operations
GMAT 1: 710 Q51 V25
Followers: 1

Kudos [?]: 41 [1] , given: 52

GMAT ToolKit User
Re: Station Q is to the East of Station T. At 12 noon, a train s [#permalink]

Show Tags

New post 30 Sep 2013, 11:11
1
This post received
KUDOS
honchos wrote:
Station Q is to the East of Station T. At 12 noon, a train starts from Station Q and travels at a constant speed of x mph towards Station T. At 12 noon of the same day, another train starts from Station T and travels at a constant speed of y mph towards Station Q. At what time will the trains meet?
(1) y = 4x/3
(2) x = 100 mph



haha .. there is no mention of distance between Q and T .. neither in question nor in any of the statements .. distance could be 10000 miles or 10 miles .. not possible to get the answer ..

Its E ..

funny one ..
_________________

Forget Kudos ... be an altruist

Manager
Manager
avatar
Joined: 24 Apr 2013
Posts: 71
Location: United States
Followers: 0

Kudos [?]: 11 [0], given: 23

Re: Station Q is to the East of Station T. At 12 noon, a train s [#permalink]

Show Tags

New post 15 Oct 2013, 03:30
I don't know how to solve these distance/rate question in the two "meeting" at some point in the middle. Some questions ask at what time would they meet and others ask about the distance at which they would meet.

Can someone please clarify the equation I should use. I know I'm supposed to subtract rates, but can someone please give me a quick run down over the procedures.

Thanks
_________________

Struggling: make or break attempt

2 KUDOS received
Verbal Forum Moderator
Verbal Forum Moderator
User avatar
Joined: 10 Oct 2012
Posts: 631
Followers: 78

Kudos [?]: 1086 [2] , given: 136

Premium Member
Re: Station Q is to the East of Station T. At 12 noon, a train s [#permalink]

Show Tags

New post 15 Oct 2013, 04:39
2
This post received
KUDOS
SaraLotfy wrote:
I don't know how to solve these distance/rate question in the two "meeting" at some point in the middle. Some questions ask at what time would they meet and others ask about the distance at which they would meet.

Can someone please clarify the equation I should use. I know I'm supposed to subtract rates, but can someone please give me a quick run down over the procedures.

Thanks


Remember 2 things :

I.Two objects moving in the same direction,subtract their speeds, call it \(V_{sd}\)

II.Two objects moving in opposite direction, add their speeds, call it \(V_{od}\)

The distance between them be fixed as D. Thus, as we know that Distance = Speed*Time, for the first case, we have Time taken to meet = \(\frac{D}{V_{sd}}\)

Similarly, for the second case, we have Time = \(\frac{D}{V_{od}}\)

Now, if you want the distance at which they meet, just multiply the time calculated above, fix the reference from which object do you want to calculate the distance, and multiply this time with the speed of that object.

Also, you can refer to this post : cars-p-and-q-started-simultaneously-from-opposite-ends-of-a-159355.html#p1264794


Hope this helps,
_________________

All that is equal and not-Deep Dive In-equality

Hit and Trial for Integral Solutions

Manager
Manager
avatar
Joined: 24 Apr 2013
Posts: 71
Location: United States
Followers: 0

Kudos [?]: 11 [0], given: 23

Re: Station Q is to the East of Station T. At 12 noon, a train s [#permalink]

Show Tags

New post 15 Oct 2013, 23:48
mau5 wrote:
SaraLotfy wrote:
I don't know how to solve these distance/rate question in the two "meeting" at some point in the middle. Some questions ask at what time would they meet and others ask about the distance at which they would meet.

Can someone please clarify the equation I should use. I know I'm supposed to subtract rates, but can someone please give me a quick run down over the procedures.

Thanks


Remember 2 things :

I.Two objects moving in the same direction,subtract their speeds, call it \(V_{sd}\)

II.Two objects moving in opposite direction, add their speeds, call it \(V_{od}\)

The distance between them be fixed as D. Thus, as we know that Distance = Speed*Time, for the first case, we have Time taken to meet = \(\frac{D}{V_{sd}}\)

Similarly, for the second case, we have Time = \(\frac{D}{V_{od}}\)

Now, if you want the distance at which they meet, just multiply the time calculated above, fix the reference from which object do you want to calculate the distance, and multiply this time with the speed of that object.

Also, you can refer to this post : cars-p-and-q-started-simultaneously-from-opposite-ends-of-a-159355.html#p1264794


Hope this helps,


Thank you, this is exactly what I needed :)
_________________

Struggling: make or break attempt

Current Student
User avatar
Joined: 06 Sep 2013
Posts: 2035
Concentration: Finance
GMAT 1: 770 Q0 V
Followers: 60

Kudos [?]: 581 [0], given: 355

GMAT ToolKit User
Re: Station Q is to the East of Station T. At 12 noon, a train s [#permalink]

Show Tags

New post 31 Dec 2013, 07:10
honchos wrote:
Station Q is to the East of Station T. At 12 noon, a train starts from Station Q and travels at a constant speed of x mph towards Station T. At 12 noon of the same day, another train starts from Station T and travels at a constant speed of y mph towards Station Q. At what time will the trains meet?

(1) y = 4x/3
(2) x = 100 mph


Oh I see, they got me on this one.

E for sure

Cheers!
J :)
Manager
Manager
avatar
Joined: 17 Oct 2015
Posts: 125
Location: India
Concentration: Finance
Schools: ISB '18 (S)
GMAT 1: 690 Q47 V37
GMAT 2: 700 Q44 V41
WE: Corporate Finance (Commercial Banking)
Followers: 4

Kudos [?]: 27 [0], given: 317

Reviews Badge
Re: Station Q is to the East of Station T. At 12 noon, a train s [#permalink]

Show Tags

New post 18 Feb 2016, 03:09
seems easy, but it is actually a good question.
Re: Station Q is to the East of Station T. At 12 noon, a train s   [#permalink] 18 Feb 2016, 03:09
    Similar topics Author Replies Last post
Similar
Topics:
4 A certain train traveled from Station A to Station B. Was the train's HarveyKlaus 3 15 Aug 2016, 07:09
2 Experts publish their posts in the topic A train traveled from station X to station Y at a constant speed of 88 Bunuel 3 23 Jun 2016, 02:01
25 Experts publish their posts in the topic A train traveled from Station A to Station B at an average speed of 80 NoHalfMeasures 8 04 Jun 2014, 23:00
11 Trains A and B left stations R and S simultaneously on two s fozzzy 6 08 Oct 2013, 07:24
2 Trains are leaving station A for station B every 15 minutes sset009 7 26 Aug 2008, 08:43
Display posts from previous: Sort by

Station Q is to the East of Station T. At 12 noon, a train s

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


GMAT Club MBA Forum Home| About| 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®.