It is currently 24 Sep 2017, 18:11

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.

Close

Request Expert Reply

Confirm Cancel

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

PFA 2question..JPG

  post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
Manager
Manager
avatar
Joined: 09 Oct 2008
Posts: 93

Kudos [?]: 24 [0], given: 0

PFA 2question..JPG [#permalink]

Show Tags

New post 22 Oct 2008, 20:36
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

PFA
Attachment:
2question..JPG
2question..JPG [ 62.32 KiB | Viewed 645 times ]

Kudos [?]: 24 [0], given: 0

Senior Manager
Senior Manager
User avatar
Joined: 04 Aug 2008
Posts: 374

Kudos [?]: 36 [0], given: 1

Re: simple maths problem [#permalink]

Show Tags

New post 22 Oct 2008, 22:15
250miles/30m-g/12gallons/1

=250/30*12

=25/36
_________________

The one who flies is worthy. The one who is worthy flies. The one who doesn't fly isn't worthy

Kudos [?]: 36 [0], given: 1

Intern
Intern
avatar
Joined: 03 Mar 2008
Posts: 46

Kudos [?]: 11 [0], given: 0

Re: simple maths problem [#permalink]

Show Tags

New post 22 Oct 2008, 22:16
vishalgc wrote:
PFA
Attachment:
2question..JPG


(i)
x + (1.1 x) 10 = 132000
x = 11000

(ii)
250 miles implies 25/3 gallons used
implies (25/3)/12 = 25/36 fraction used of full tank

Last edited by kandyhot27 on 22 Oct 2008, 22:17, edited 1 time in total.

Kudos [?]: 11 [0], given: 0

Senior Manager
Senior Manager
User avatar
Joined: 29 Mar 2008
Posts: 348

Kudos [?]: 88 [0], given: 0

Re: simple maths problem [#permalink]

Show Tags

New post 22 Oct 2008, 22:17
1) Pick an answer and work backwards.
Let the least population be 10,900. Hence, rest of the 10 districts can have a population of 11990 each. Now, 10,900 + 10(11990) = 130800, but the total population is 132000.
Let the least population be 11,000. Hence, rest of the 10 districts can have a population of 12100 each. Now, 11,000+10(12100) = 132000 (which is the total population).
Hence 11,000. (No need to try 11100 as this will exceed the given population of 132000.)

Another way of looking at this is- The district 1 will have the least population and rest of the 10 districts will have a population of 10% higher than district 1 to meet the given condition.
Let X be the pupulation of district 1 (Least)
13200 = (1+10/100)X*10 + X
Solving for X, gives 11,000.

2) The car travels 250 miles (i.e Distance = Speed * Time =50 *5)
The car can travel 30 miles in 1G of gasolene.
In order to travel 250 miles, the car will need 250/30= 25/3 Gallons.

Fraction of gasolene used to total = (25/3)/12 = 25/36.
_________________

To find what you seek in the road of life, the best proverb of all is that which says:
"Leave no stone unturned."
-Edward Bulwer Lytton

Kudos [?]: 88 [0], given: 0

Re: simple maths problem   [#permalink] 22 Oct 2008, 22:17
Display posts from previous: Sort by

PFA 2question..JPG

  post reply Question banks Downloads My Bookmarks Reviews Important topics  


GMAT Club MBA Forum Home| About| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

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®.