Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 25 May 2017, 21:54

### 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

# What is the distance between Harry s home and his office?

Author Message
TAGS:

### Hide Tags

Director
Status: Finally Done. Admitted in Kellogg for 2015 intake
Joined: 25 Jun 2011
Posts: 537
Location: United Kingdom
GMAT 1: 730 Q49 V45
GPA: 2.9
WE: Information Technology (Consulting)
Followers: 77

Kudos [?]: 3380 [1] , given: 217

What is the distance between Harry s home and his office? [#permalink]

### Show Tags

10 Nov 2011, 16:50
1
KUDOS
3
This post was
BOOKMARKED
00:00

Difficulty:

15% (low)

Question Stats:

73% (01:44) correct 27% (00:42) wrong based on 435 sessions

### HideShow timer Statistics

What is the distance between Harry’s home and his office?

(1) Harry’s average speed on his commute to work this Monday was 30 miles per hour.
(2) If Harry’s average speed on his commute to work this Monday had been twice as fast, his trip would have been 15 minutes shorter.

[Reveal] Spoiler:
Can someone please explain whether I have done it correctly or not?

Let d - distance between Harry's home and office
r - Rate
t - time

Considering Statement 1

Rate = Distance/Time
Distance = Rate * Time i.e D = 30 t. We can't calculate D unless we know t. Therefore, insufficient.

Considering Statement 2 on its own is clearly insufficient.

Considering both Statements together

If the speed remains 30mph then time will be 30 minutes { Is his correct?}

Therefore, D = r*t = 30 * 30/60 = 15 miles. Therefore, C is the right answer.
[Reveal] Spoiler: OA

_________________

Best Regards,
E.

MGMAT 1 --> 530
MGMAT 2--> 640
MGMAT 3 ---> 610
GMAT ==> 730

Senior Manager
Joined: 11 May 2011
Posts: 363
Location: US
Followers: 4

Kudos [?]: 102 [0], given: 46

Re: Distance between office and work - Ivy Q17 [#permalink]

### Show Tags

10 Nov 2011, 18:09
enigma123 wrote:
What is the distance between Harry’s home and his office?
(1) Harry’s average speed on his commute to work this Monday was 30 miles per hour.
(2) If Harry’s average speed on his commute to work this Monday had been twice as fast, his trip would have been 15 minutes shorter.

Can someone please explain whether I have done it correctly or not?

Let d - distance between Harry's home and office
r - Rate
t - time

Considering Statement 1

Rate = Distance/Time
Distance = Rate * Time i.e D = 30 t. We can't calculate D unless we know t. Therefore, insufficient.

Considering Statement 2 on its own is clearly insufficient.

Considering both Statements together

If the speed remains 30mph then time will be 30 minutes { Is his correct?}

Therefore, D = r*t = 30 * 30/60 = 15 miles. Therefore, C is the right answer.

If the speed remains 30mph then time will be 30 minutes - Absolutely Correct!!!!
D = r*t = 30 * 30/60 = 15 miles. - Method of solving this problem is correct.

Cheers!
_________________

-----------------------------------------------------------------------------------------
What you do TODAY is important because you're exchanging a day of your life for it!
-----------------------------------------------------------------------------------------

Senior Manager
Joined: 25 Nov 2011
Posts: 256
Location: India
Concentration: Technology, General Management
GPA: 3.95
WE: Information Technology (Computer Software)
Followers: 4

Kudos [?]: 183 [1] , given: 20

Re: What is the distance between Harry s home and his office? [#permalink]

### Show Tags

08 Feb 2012, 06:45
1
KUDOS
Agree with C.

As per the second statement, if he had traveled twice the speed, he would have saved half of the time. Combining this with the first statement, we come to know half of the time is 15 min and hence total or actual time would be 30min. Now we know speed and time and hence we can calculate distance.
_________________

-------------------------
-Aravind Chembeti

GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15452
Followers: 649

Kudos [?]: 209 [0], given: 0

Re: What is the distance between Harry s home and his office? [#permalink]

### Show Tags

19 Sep 2013, 10:37
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.
_________________
Intern
Joined: 19 Apr 2012
Posts: 15
Concentration: Technology, General Management
GMAT Date: 06-26-2014
GPA: 4
WE: Programming (Computer Software)
Followers: 0

Kudos [?]: 2 [1] , given: 30

Re: What is the distance between Harry s home and his office? [#permalink]

### Show Tags

15 Feb 2014, 10:03
1
KUDOS
Though a long method for DS, but solved it as

Distance between home and office = d

I) Speed s= 30mph.
No other info provided, hence Insufficient

II) Original Speed = s
Original Time = t
New Speed = 2s
New Time = (t-0.25) [15 mins = 0.25hrs)

Distance is same, hence

s*t = 2s(t-0.25)
Solving results in t=0.5 hrs.

No info about speed hence, Insufficient.

I&II ) s= 30mph
t= 0.5hrs
d= s*t => 15miles. Ans: C
GMAT Club Legend
Joined: 09 Sep 2013
Posts: 15452
Followers: 649

Kudos [?]: 209 [0], given: 0

Re: What is the distance between Harry s home and his office? [#permalink]

### Show Tags

12 Mar 2016, 10:55
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.
_________________
Re: What is the distance between Harry s home and his office?   [#permalink] 12 Mar 2016, 10:55
Similar topics Replies Last post
Similar
Topics:
Jason can drive from his home to his office by one of two possible rou 1 12 Apr 2017, 09:35
What distance does Jim travel from his home to the supermarket 2 11 Mar 2017, 16:45
Jim can drive from his home to his office by one of the two possible 1 03 Jan 2017, 09:53
14 What is the distance between a and b on the number line? 8 15 Mar 2017, 02:03
14 What is the distance between x and y on the number line? 13 22 May 2017, 19:47
Display posts from previous: Sort by