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

It is currently 18 Apr 2014, 07:50

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

M04 #1

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Senior Manager
Senior Manager
User avatar
Joined: 08 Nov 2010
Posts: 424
WE 1: Business Development
Followers: 6

Kudos [?]: 28 [0], given: 161

GMAT ToolKit User GMAT Tests User
Re: M04 #1 [#permalink] New post 17 Jan 2011, 11:46
well a is the only one that give u time. otherwise - u cannot know how long is the drive...
Current Student
User avatar
Joined: 16 Sep 2010
Posts: 226
Location: United States
Concentration: Finance, Real Estate
GMAT 1: 740 Q48 V42
Followers: 7

Kudos [?]: 51 [0], given: 2

GMAT Tests User
Re: M04 #1 [#permalink] New post 17 Jan 2011, 20:01
A. B has nothing to do with solving the question and with A you can quickly back into his normal time which is 30 mins.
Director
Director
Joined: 01 Feb 2011
Posts: 773
Followers: 12

Kudos [?]: 76 [0], given: 42

GMAT Tests User
Re: M04 #1 [#permalink] New post 11 Jun 2011, 17:45
lets say the normal speed is v => v= d/t1

where t1 is the time taken to cover distance d.

when speed is
v/1.5 = d/t2

1. Sufficient

v/1.5 = d/t1+15

v = d/t1

solving these two equations t1 can found out.

2. Not sufficient

d = 15

no info on v or there is no way to find out t1.

Answer is A.
Intern
Intern
Joined: 09 Jan 2012
Posts: 23
Concentration: Strategy, Finance
GMAT Date: 10-17-2013
WE: Consulting (Computer Software)
Followers: 0

Kudos [?]: 8 [0], given: 21

Re: M04 #1 [#permalink] New post 18 Jan 2012, 22:36
Rate and Work problems are handled like this.

Rate x Time = Distance (Work) :idea:

Now in this question below is given:
Time2 = 1.5 Time1 .... (1)And question is asking Time1 =?

Statement1 : Time2 = 15 + Time1 ... (2).
Using both we get 1.5Time1 = 15 + Time1 2 Equations 1 variable so solvable and Time1 comes out to be 30 mins.

Statement 2: Distance is given so if we use the main equation
Rate x Time = Distance (Work)
Rate1 x Time1 = 15
NOT SUFFICIENT

So Answer is A.
_________________

Thanks & Regards
Yodee



‘A good plan violently executed now is better than a
perfect plan executed next week.’

- General Georg S. Patton

Intern
Intern
Status: Life begins at the End of your Comfort Zone
Joined: 31 Jul 2011
Posts: 47
Location: Tajikistan
Concentration: General Management, Technology
GPA: 3.86
Followers: 1

Kudos [?]: 21 [0], given: 4

GMAT Tests User
Re: M04 #1 [#permalink] New post 14 Sep 2012, 11:06
Here we go, since the question is Data Sufficiency we do not need exact answer, just get the gist.

You know that Time = Distance/Speed, and from here we can find either value, yep?

Let the Speed be X, Distance D and Time Spent D/X - all the usual indicators

However, Today occurred some changes as follow:

TODAY: - Speed Today X/1.5 (1.5 times slower) and Time Spent 1.5D/X and the Distance remain the same, lets now move to options what we got:

1. From Statement 1 we get that 1.5D/X - D/X = 15/60 --->>>> a little bit manipulation gives us that D/X = 1/2, OR usual time (Before) it took Bill 1/2 hour or 30 minutes to drive to school, hence Sufficient.

2. The distance between home and school is irrelevant here, it can not help us that much, thus Insufficient.

Therefore, answer would be (A)

Please, correct me if I went awry.

dczuchta wrote:
Driving 1.5 times slower, Bill was late for school today. What is the usual time it takes Bill to drive to school? (Assume that each day Bill takes the same route).

1) It took Bill 15 more minutes to drive to school today than usually
2) The distance between home and school is 15 miles

[Reveal] Spoiler: OA
A

Source: GMAT Club Tests - hardest GMAT questions

S1 tells us that on average Bill drives for 15 minutes less. Since he drove 1.5 times slower, the 15 minutes account for the difference. Therefore, it is possible to find the difference. (Can Someone Please Explain to Me Here In an Equation HOw we Can come up with that Answer if We Needed To. Thank you.

S2 does not tell us much; we don't really need to know the distance and by itself it is insufficeint.

_________________

God loves the steadfast.


Last edited by Javoni on 14 Sep 2012, 11:17, edited 1 time in total.
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 17307
Followers: 2873

Kudos [?]: 18374 [0], given: 2348

GMAT Tests User CAT Tests
Re: M04 #1 [#permalink] New post 18 Jan 2013, 05:05
Expert's post
Manager
Manager
Joined: 05 Sep 2012
Posts: 79
Followers: 2

Kudos [?]: 3 [0], given: 17

Re: M04 #1 [#permalink] New post 18 Jan 2013, 08:12
Bunuel wrote:
REVISED VERSION OF THIS QUESTION IS HERE: m04-70604-20.html#p1121614



Yep the revised question makes complete sense. Thanks Bunuel.
Re: M04 #1   [#permalink] 18 Jan 2013, 08:12
    Similar topics Author Replies Last post
Similar
Topics:
Popular new posts 19 Experts publish their posts in the topic M04 #12 Tvisha 93 10 Aug 2008, 11:56
Popular new posts 3 Experts publish their posts in the topic m04 Q23 vishy007 12 14 Sep 2008, 05:12
Popular new posts 15 Experts publish their posts in the topic M04 # 32 dczuchta 15 22 Sep 2008, 18:43
Popular new posts 3 Experts publish their posts in the topic m04 #24 gmat4life 24 09 Oct 2008, 14:47
New posts m04 bibha 1 12 Jul 2010, 03:49
Display posts from previous: Sort by

M04 #1

  Question banks Downloads My Bookmarks Reviews Important topics  

Go to page   Previous    1   2   [ 27 posts ] 

Moderators: Bunuel, WoundedTiger



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®.