On a certain day it took Bill three times as long to drive : GMAT Data Sufficiency (DS)
Check GMAT Club Decision Tracker for the Latest School Decision Releases http://gmatclub.com/AppTrack

 It is currently 19 Jan 2017, 01:25

### 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

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

# Events & Promotions

###### Events & Promotions in June
Open Detailed Calendar

# On a certain day it took Bill three times as long to drive

Author Message
TAGS:

### Hide Tags

Manager
Joined: 31 Oct 2007
Posts: 113
Location: Frankfurt, Germany
Followers: 2

Kudos [?]: 61 [0], given: 0

On a certain day it took Bill three times as long to drive [#permalink]

### Show Tags

21 Mar 2008, 23:33
00:00

Difficulty:

55% (hard)

Question Stats:

62% (02:44) correct 38% (02:15) wrong based on 93 sessions

### HideShow timer Statistics

On a certain day it took Bill three times as long to drive from home to work as it took Sue to drive from home to work. How many kilometers did Bill drive from home to work?

(1) Sue drove 10 kilometers from home to work, and the ratio of distance driven from home to work time to drive from home to work was the same for Bill and Sue that day.

(2) The ratio of distance driven from home to work time to drive from home to work for Sue that day was 64 kilometers per hour

OPEN DISCUSSION OF THIS QUESTION IS HERE: on-a-certain-day-it-took-bill-three-times-as-long-to-drive-87986.html
[Reveal] Spoiler: OA

_________________

Jimmy Low, Frankfurt, Germany
Blog: http://mytrainmaster.wordpress.com
GMAT Malaysia: http://gmatmalaysia.blogspot.com

Last edited by Bunuel on 27 May 2014, 09:22, edited 1 time in total.
Edited the question and added the OA
Director
Joined: 05 Jan 2008
Posts: 701
Followers: 5

Kudos [?]: 415 [0], given: 0

Re: 1000DS: Section 1 Question 15 [#permalink]

### Show Tags

22 Mar 2008, 06:00
Folks , can anyone explain "ratio of distance driven from home to work time"? I don't understand it
_________________

Persistence+Patience+Persistence+Patience=G...O...A...L

Director
Joined: 10 Sep 2007
Posts: 947
Followers: 8

Kudos [?]: 287 [2] , given: 0

Re: 1000DS: Section 1 Question 15 [#permalink]

### Show Tags

22 Mar 2008, 06:13
2
KUDOS
1
This post was
BOOKMARKED
Question tells us if Sue took t hours to reach office, then Bill took 3t hours.

Statement 1:
Tells us that Sue travelled = 10 KM and ratio of distance driven from home to work time (Basically the speed) is same for both Sue and Bill.
Sue's speed = 10/t
Bill's Speed = D/3t (assuming Bill travelled D KM).
So as per this statement 10/t = D/3t => D = 30 KM
Question can be answered with this statement alone. Answer can only be A, or D.

Statement 2:
Tells us that Sue's speed = 64 KM/Hour. But no relation is given between Sue's speed and Bill's speed so this statement alone is insufficient.

Director
Joined: 10 Sep 2007
Posts: 947
Followers: 8

Kudos [?]: 287 [1] , given: 0

Re: 1000DS: Section 1 Question 15 [#permalink]

### Show Tags

22 Mar 2008, 06:15
1
KUDOS
prasannar wrote:
Folks , can anyone explain "ratio of distance driven from home to work time"? I don't understand it

Ratio of Distance to time is basically Speed.
Manager
Joined: 31 Oct 2007
Posts: 113
Location: Frankfurt, Germany
Followers: 2

Kudos [?]: 61 [0], given: 0

Re: 1000DS: Section 1 Question 15 [#permalink]

### Show Tags

22 Mar 2008, 06:57
Thks Jit.

The OA = A. I did not understand the underlined statement. Thks again.
_________________

Jimmy Low, Frankfurt, Germany
Blog: http://mytrainmaster.wordpress.com
GMAT Malaysia: http://gmatmalaysia.blogspot.com

CEO
Joined: 17 Nov 2007
Posts: 3589
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
Followers: 546

Kudos [?]: 3556 [0], given: 360

Re: 1000DS: Section 1 Question 15 [#permalink]

### Show Tags

22 Mar 2008, 10:30
abhijit_sen, thanx, I'm also confused by the wording of the problem
+1
_________________

HOT! GMAT TOOLKIT 2 (iOS) / GMAT TOOLKIT (Android) - The OFFICIAL GMAT CLUB PREP APP, a must-have app especially if you aim at 700+ | PrepGame

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 13441
Followers: 575

Kudos [?]: 163 [0], given: 0

Re: On a certain day it took Bill three times as long to drive [#permalink]

### Show Tags

27 May 2014, 07:18
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.
_________________
Math Expert
Joined: 02 Sep 2009
Posts: 36549
Followers: 7078

Kudos [?]: 93145 [0], given: 10552

Re: On a certain day it took Bill three times as long to drive [#permalink]

### Show Tags

27 May 2014, 09:24
On a certain day it took Bill three times as long to drive from home to work as it took Sue to drive from home to work. How many kilometers did Bill drive from home to work?

{Bill's Time} = 3*{Sue's Time}

(1) Sue drove 10 kilometers from home to work, and the ratio of distance driven from home to work time to drive from home to work was the same for Bill and Sue that day.

Sue's distance = 10km,

The ratio of distance to time is rate of speed, so we are told that Bill's speed is the same as Sue's. As Bill's time was three times longer, with the same rate he would cover 3 times more distance than Sue did.

{Bill's distance} = 3*{Sue's distance} = 3*10 = 30km.

Sufficient.

(2) (2) The ratio of distance driven from home to work time to drive from home to work for Sue that day was 64 kilometers per hour. Only rate of Sue is given. Not sufficient.

OPEN DISCUSSION OF THIS QUESTION IS HERE: on-a-certain-day-it-took-bill-three-times-as-long-to-drive-87986.html
_________________
Re: On a certain day it took Bill three times as long to drive   [#permalink] 27 May 2014, 09:24
Similar topics Replies Last post
Similar
Topics:
43 Three employees, A, B and C, clean a certain conference room each day. 10 26 Feb 2015, 10:36
1 How long did it take Henry to drive to work last Wednesday? 4 04 Feb 2011, 11:40
How long does it take to drive from the factory to the 8 12 Aug 2010, 00:26
9 On a certain day it took Bill three times as long to drive 10 14 Dec 2009, 23:04
9 How long did it take Betty to drive nonstop on a trip from 10 04 Jun 2008, 03:03
Display posts from previous: Sort by