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tough mixture problems

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Director
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tough mixture problems [#permalink] New post 05 Jul 2007, 07:44
Guys,

I'm having a very tough time with mixture problems specially problems dealing with mixing solutions. Can somebody suggest good study material for this and also the place where i can get the best practice questions for these kinds of problems.

Thanks
Director
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Re: tough mixture problems [#permalink] New post 05 Jul 2007, 23:19
trahul4 wrote:
Guys,

I'm having a very tough time with mixture problems specially problems dealing with mixing solutions. Can somebody suggest good study material for this and also the place where i can get the best practice questions for these kinds of problems.

Thanks


Trahul,
Same boat as you. GMAT 800 has a decent intro./summary regd. how to solve these kind of questions. Aside from that, I've found the forum the most helpful resource.
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 [#permalink] New post 06 Jul 2007, 22:37
I use the Kaplan formula .It has worked for all the mixture problems that i have tried.Its in the last pages of the kaplan book.
CIO
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 [#permalink] New post 07 Jul 2007, 09:03
http://www.gmatclub.com/phpbb/viewtopic.php?t=10946

Here is a posting from a few years ago in which we discussed mixture problems. This is a tough question, but the methodology is right on the money. We can do a new posting on mixtures and solutions if want after messing with this.

Here is the question from then:

One fourth of a solution that was 10 percent sugar by weight was replaced by a second solution resulting in a solution that was 16 percent sugar by weight. The second solution was what percent sugar by weight ?

(A) 34%

(B) 24%

(C) 22%

(D) 18%

(E) 8.5%
Director
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 [#permalink] New post 10 Jul 2007, 02:11
ian,
your methodology is wonderful. i will try to incorporate this into my practice. this should help. thanks a ton.
CIO
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 [#permalink] New post 10 Jul 2007, 03:03
trahul4 wrote:
ian,
your methodology is wonderful. i will try to incorporate this into my practice. this should help. thanks a ton.


Great! Good luck with studying.
  [#permalink] 10 Jul 2007, 03:03
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