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

 It is currently 06 Jul 2015, 13:01

### 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

# http://www.manhattangmat.com Did anyone try this problem ??

Author Message
TAGS:
Senior Manager
Joined: 05 May 2003
Posts: 426
Location: Aus
Followers: 2

Kudos [?]: 5 [0], given: 0

http://www.manhattangmat.com Did anyone try this problem ?? [#permalink]  03 Feb 2004, 08:25
http://www.manhattangmat.com

Did anyone try this problem ?? I am getting E as the answer.
 Kaplan Promo Code Knewton GMAT Discount Codes Manhattan GMAT Discount Codes
GMAT Club Legend
Joined: 15 Dec 2003
Posts: 4309
Followers: 29

Kudos [?]: 235 [0], given: 0

Got C also. This problem is clearly about the Pythagorean theorem
First, just find the ground distance between the current position and the re-routed position:
distance = (15^2 + 8^2 )^1/2 = 289^1/2

Actual distance between current position and re-routed position:
distance = (289^1/2 + 6^2)^1/2 = 325^1/2 = 5 * 13^1/2

Actual distance between current position and original position:
distance = (8^2 + 6^2)^1/2 = 100^1/2 = 10

Speed differential in order to arrive on time:
Distance/Time = Speed
NB Time is 1/20 because 3minutes = 1/20 hour
= (5 * 13^1/2 - 10) / (1/20)
= 20 * (5 * 13^1/2 - 10)
= 100 * SQR13 - 200
_________________

Best Regards,

Paul

Last edited by Paul on 03 Feb 2004, 09:53, edited 1 time in total.
Senior Manager
Joined: 11 Nov 2003
Posts: 355
Location: Illinois
Followers: 1

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

Re: 02/02/2004 - Manhattan GMAT problem [#permalink]  03 Feb 2004, 09:48
Geethu wrote:
www.manhattangmat.com

Did anyone try this problem ?? I am getting E as the answer.

I think you did the problem correctly upto certain point but than what the question is asking is "By how many miles per hour pilot has to increase the speed? "

What you found is I think "What should be the speed of plan to reach the new destination on time?"
SVP
Joined: 30 Oct 2003
Posts: 1794
Location: NewJersey USA
Followers: 5

Kudos [?]: 43 [0], given: 0

Got C.
Attachments

Slide1.JPG [ 20.8 KiB | Viewed 425 times ]

SVP
Joined: 30 Oct 2003
Posts: 1794
Location: NewJersey USA
Followers: 5

Kudos [?]: 43 [0], given: 0

Hi Geethu,

You calculated the speed necessary to land at 8 PM. But the question is asking the increase in the speed.

Anand.
Senior Manager
Joined: 05 May 2003
Posts: 426
Location: Aus
Followers: 2

Kudos [?]: 5 [0], given: 0

Thank you guys. I see the difference now.
Similar topics Replies Last post
Similar
Topics:
1 has anyone done the problems in kaplan 800? Should it 2 23 Sep 2008, 10:49
I found this problem on the internet while trying to find 24 26 Oct 2007, 10:02
anyone want to tackle not one but four problems. OA to be 6 29 May 2007, 20:36
Does anyone know a shortcut for this type of problems? I 5 01 May 2007, 10:38
Anyone has a tip for ratios with 3 variables for problems 7 16 Apr 2007, 09:05
Display posts from previous: Sort by