|
Author |
Message |
|
Intern
Joined: 25 Jun 2011
Posts: 49
Location: Sydney
Followers: 0
Kudos [?]:
1
[0], given: 7
|
Re: GMAT Flashcards [#permalink]
 28 Mar 2012, 17:40
I'm confused on the Volume/Mixture Problems (Hard) question on page 38.
Could someone pls explain what is the purpose of (x‐15)(y+4)=(x+20)(y‐3)?
I understand that it is # of chickens x # of days of feed left, but what does this mean?
Thanks a lot,
Diana
|
|
|
|
|
|
|
Intern
Joined: 01 Apr 2012
Posts: 7
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Re: GMAT Flashcards [#permalink]
05 Apr 2012, 07:47
Wow I found this to be very useful if you tackle this before taking on the OG you'll be surprised on your results!!
|
|
|
|
|
|
Manager
Joined: 06 Jul 2011
Posts: 217
Location: Accra, Ghana
Followers: 1
Kudos [?]:
15
[0], given: 39
|
Re: GMAT Flashcards [#permalink]
09 Apr 2012, 02:48
I now have some resources that I can constantly look over daily to remember the stuff I should be learning.
|
|
|
|
|
|
Manager
Joined: 30 May 2008
Posts: 72
Followers: 0
Kudos [?]:
0
[0], given: 16
|
Re: GMAT Flashcards [#permalink]
10 Apr 2012, 12:07
The office of 120 is split between male and female
employees at the ratio of 3:5. If 40% of the
employees are married and 20 of the married
employees in the office are men, how many of the
women working in the office are single?
In your matrix you drew, where are you getting 45 and 75? It just seems like you are pulling them out of thin air.
Note: Above question was posted by RyanP, though I have the same question.
Answer provided was:
the ratio is 3:5, so that means if you divide 120 by (3+5), you will get 15.
Now multiply 3 by 15 and 5 by 15 and you get those numbers (yes, out of thin air though with the help of some math)
Can someone please explain the reason why you can do 120 / by (3+5)? Also any alternative solution to this type of question without drawing a matrix? Thanks!
|
|
|
|
|
|
Founder
Status: On Vacation :-)
Affiliations: UA-1K, SPG-G, HH-D
Joined: 04 Dec 2002
Posts: 10400
Location: United States (WA)
GMAT 1: 750 Q49 V42
GPA: 3.5
WE: Information Technology (Hospitality and Tourism)
Followers: 1367
Kudos [?]:
4189
[0], given: 3121
|
Re: GMAT Flashcards [#permalink]
10 Apr 2012, 12:34
catty2004 wrote: The office of 120 is split between male and female
employees at the ratio of 3:5. If 40% of the
employees are married and 20 of the married
employees in the office are men, how many of the
women working in the office are single?
In your matrix you drew, where are you getting 45 and 75? It just seems like you are pulling them out of thin air.
Note: Above question was posted by RyanP, though I have the same question.
Answer provided was:
the ratio is 3:5, so that means if you divide 120 by (3+5), you will get 15.
Now multiply 3 by 15 and 5 by 15 and you get those numbers (yes, out of thin air though with the help of some math)
Can someone please explain the reason why you can do 120 / by (3+5)? Also any alternative solution to this type of question without drawing a matrix? Thanks! We know that there is a ratio of 3:5. We must understand how ratios work to be able to solve the problem. The minimum number of people in the office is 8 - do you agree? (If not, this is the question to address) The next possible number is 16, 24, 32, etc ..... 120. Does this help? P.S. the matrix/table is the easiest way to solve this question. It is quite a math exercise to solve it with equations.
_________________
Founder of GMAT Club
Just starting out with GMAT? Start here... | Want to know your GMAT Score? Try GMAT Score Estimator
Need GMAT Book Recommendations? Best GMAT Books
Co-author of the GMAT Club tests
Find out what's new at GMAT Club - latest features and updates
|
|
|
|
|
|
Intern
Joined: 03 Jun 2011
Posts: 3
Location: India
Followers: 0
Kudos [?]:
0
[0], given: 7
|
Re: GMAT Flashcards [#permalink]
11 Apr 2012, 20:13
catty2004 wrote: The office of 120 is split between male and female
employees at the ratio of 3:5. If 40% of the
employees are married and 20 of the married
employees in the office are men, how many of the
women working in the office are single?
In your matrix you drew, where are you getting 45 and 75? It just seems like you are pulling them out of thin air.
Note: Above question was posted by RyanP, though I have the same question.
Answer provided was:
the ratio is 3:5, so that means if you divide 120 by (3+5), you will get 15.
Now multiply 3 by 15 and 5 by 15 and you get those numbers (yes, out of thin air though with the help of some math)
Can someone please explain the reason why you can do 120 / by (3+5)? Also any alternative solution to this type of question without drawing a matrix? Thanks! Let us say that the no of male employee is 3x.So the no of female employees would be 5x (male/Female=3x/5x=3/5) Therefore total no of employees would be 3x+5x=8x.Also given that total no of employees is 120 so 8x=120=> x=15 hence no of male= 3x=3*15=45 and no of female = 5x=75 Hope this clears
|
|
|
|
|
|
Manager
Joined: 01 Apr 2010
Posts: 205
Followers: 1
Kudos [?]:
11
[0], given: 4
|
Re: GMAT Flashcards [#permalink]
18 Apr 2012, 09:45
Great resource, better than another set of flashcards I recieved.
|
|
|
|
|
|
Intern
Joined: 11 Jan 2011
Posts: 27
Followers: 0
Kudos [?]:
1
[0], given: 1
|
Re: GMAT Flashcards [#permalink]
23 Apr 2012, 19:17
Going to try this on my Iconia 500 :D
TYVM!
|
|
|
|
|
|
Intern
Joined: 04 Mar 2012
Posts: 3
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Re: GMAT Flashcards [#permalink]
03 May 2012, 20:15
Thanks for the flashcards. so very helpful! 
|
|
|
|
|
|
Intern
Joined: 25 May 2012
Posts: 4
Followers: 0
Kudos [?]:
0
[0], given: 2
|
Re: GMAT Flashcards [#permalink]
25 May 2012, 02:56
Excellent last minute prep . Will Study and if found too good will award u additional kudos!
Keep up the good work buddy
Oh! Forgot to say thank you so much, a million thanks
|
|
|
|
|
|
Intern
Joined: 20 Dec 2011
Posts: 1
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Re: GMAT Flashcards [#permalink]
16 Jul 2012, 16:45
how can I import this into gmat app flashcards via email?
|
|
|
|
|
|
Intern
Joined: 17 May 2012
Posts: 4
Concentration: Finance, Entrepreneurship
GMAT Date: 10-20-2012
GPA: 2.89
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Re: GMAT Flashcards [#permalink]
18 Jul 2012, 15:20
Thank you. Looking forward to using the flashcards. Are these all flashcards that are already loaded on the iPad app? Just downloaded the iPad app yesterday
|
|
|
|
|
|
Intern
Joined: 25 May 2012
Posts: 43
Location: United States
Concentration: General Management, Strategy
GMAT 1: 590 Q36 V35
GMAT 2: 690 Q47 V38
GMAT 3: 740 Q49 V42
GPA: 3.42
WE: Business Development (Commercial Banking)
Followers: 2
Kudos [?]:
6
[0], given: 10
|
Re: GMAT Flashcards [#permalink]
19 Jul 2012, 08:23
These cards are great. Probably not the safest thing to do, but I keep them in my car and study while driving. A safer route is studying while another (who doesn't mind reading them to you) is in the car to participate. A great tool - thanks BB!
|
|
|
|
|
|
Intern
Joined: 06 May 2012
Posts: 11
Location: India
Concentration: General Management, Finance
GMAT 1: 640 Q49 V27
GMAT 2: 680 Q49 V34
WE: Business Development (Transportation)
Followers: 0
Kudos [?]:
5
[0], given: 5
|
Re: GMAT Flashcards [#permalink]
20 Jul 2012, 01:51
Thanx bb the flash cards are very helpful. Is there a possibility of an Android based app? I dont have an iphone 
|
|
|
|
|
|
Manager
Joined: 02 Jul 2009
Posts: 73
Followers: 0
Kudos [?]:
6
[0], given: 7
|
Re: GMAT Flashcards [#permalink]
08 Aug 2012, 13:38
Wonderful collection. Thank you.
_________________
Please provide kudos if you like my post. Thank you.
|
|
|
|
|
|
Intern
Joined: 30 Apr 2012
Posts: 2
Location: Australia
GMAT Date: 09-08-2012
WE: Business Development (Commercial Banking)
Followers: 0
Kudos [?]:
5
[0], given: 0
|
Re: GMAT Flashcards [#permalink]
08 Aug 2012, 18:29
These flash cards are amazing. Thank you
|
|
|
|
|
|
Intern
Joined: 17 Jul 2012
Posts: 7
Followers: 1
Kudos [?]:
0
[0], given: 3
|
Re: GMAT Flashcards [#permalink]
17 Aug 2012, 09:52
I am looking for some more resources for speed, work, & rate related questions.. where can i find them ?
|
|
|
|
|
|
Intern
Joined: 18 Apr 2007
Posts: 20
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Re: GMAT Flashcards [#permalink]
21 Aug 2012, 04:52
More Flashcards on EQUATIONS, INEQUALITIES, AND VICS FRACTIONS, DECIMALS, AND PERCENTS GEOMETRY NUMBER PROPERTIES SENTENCE CORRECTION WORD TRANSLATIONS And Much More .... http://gmat-preparation-guide.blogspot. ... cards.html
|
|
|
|
|
|
Intern
Joined: 27 Aug 2012
Posts: 1
Followers: 0
Kudos [?]:
0
[0], given: 3
|
Re: GMAT Flashcards [#permalink]
13 Sep 2012, 09:08
These flash cards are truly helpful. Thanks
|
|
|
|
|
|
Intern
Joined: 23 Sep 2012
Posts: 1
Followers: 0
Kudos [?]:
0
[0], given: 0
|
Re: GMAT Flashcards [#permalink]
23 Sep 2012, 21:24
Is there any tool to allow me to edit/create flashcards in Windows and then import these flashcards back to GMAT/GRE ToolKit ? Customizing my own flashcards in Iphone is painful.
|
|
|
|
|
|
|
Re: GMAT Flashcards
[#permalink]
23 Sep 2012, 21:24
|
|
|
|
|
|
|
|
|
|
|
close
