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

It is currently 19 Sep 2014, 00:15

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

Did it take Pei more than 2 hours to walk a distance of 10

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
VP
VP
avatar
Joined: 22 Nov 2007
Posts: 1102
Followers: 6

Kudos [?]: 125 [0], given: 0

GMAT Tests User
Did it take Pei more than 2 hours to walk a distance of 10 [#permalink] New post 26 Dec 2007, 07:07
Did it take Pei more than 2 hours to walk a distance of 10 miles along a certain trail? (1 mile = 1.6 km, rounded to the nearest tenth).

1. Pei walked this distance at an average rate of less than 6.4 km per hour
2. On average, it took Pei more than 9 minutes per Km to make this distance.

I thought the answer was A but I was wrong....can someone tell me why also 2. is true????
Expert Post
CEO
CEO
User avatar
Joined: 17 Nov 2007
Posts: 3571
Concentration: Entrepreneurship, Other
Schools: Chicago (Booth) - Class of 2011
GMAT 1: 750 Q50 V40
Followers: 363

Kudos [?]: 1793 [0], given: 358

GMAT ToolKit User GMAT Tests User Premium Member
 [#permalink] New post 26 Dec 2007, 07:45
Expert's post
2)

>9min/km ==> T>9[1/60*hour/km]*10[miles]*1.6[km/miles]=2.4 hours
SUFF.
Intern
Intern
avatar
Joined: 29 Aug 2007
Posts: 4
Followers: 0

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

Re: distance [#permalink] New post 26 Dec 2007, 10:05
marcodonzelli wrote:
Did it take Pei more than 2 hours to walk a distance of 10 miles along a certain trail? (1 mile = 1.6 km, rounded to the nearest tenth).

1. Pei walked this distance at an average rate of less than 6.4 km per hour
2. On average, it took Pei more than 9 minutes per Km to make this distance.

I thought the answer was A but I was wrong....can someone tell me why also 2. is true????


The answer is D.
for 2, convert 10 miles into km. and then multiply the total kms with 9 minutes and then divide what u get by 60, to get the answer.

Cheers
SVP
SVP
avatar
Joined: 28 Dec 2005
Posts: 1593
Followers: 2

Kudos [?]: 73 [0], given: 2

GMAT Tests User
 [#permalink] New post 26 Dec 2007, 16:00
i think it should be D.....although i must admit I cheated slighty by using a calculator to verify :(

stat 1 ... i picked a few values for the average speed, from which the time = 16 km / avg speed ... whatever number i picked, i always got a time greater than 2 hours. to verify, i used 6.39999, and still got less than 2. so it seemed sufficient

stat 2 ... picked values again. started off with 9 minutes, and you get 9*16km=144 min, and then moving up , the amount of time just increases, so sufficient as well
  [#permalink] 26 Dec 2007, 16:00
    Similar topics Author Replies Last post
Similar
Topics:
15 Experts publish their posts in the topic It takes Jack 2 more hours than Tom to type 20 pages. If Barkatis 15 04 Aug 2010, 18:09
7 Experts publish their posts in the topic Did it take Pei more than 2 hours to walk a distance of 10 neeraj.kaushal 10 08 May 2008, 19:28
1 Did it take Pei more than 2 hours to walk a distance of 10 marcodonzelli 1 13 Jan 2008, 07:04
Did it take Pei more than 2 hours to walk a distance of 10 uvs_mba 5 11 Nov 2006, 18:40
It takes Henry 2 more hours than Harrison to make 20 golf Titleist 2 13 Nov 2005, 16:40
Display posts from previous: Sort by

Did it take Pei more than 2 hours to walk a distance of 10

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.