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Question about Jeff Sackmann sets

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Question about Jeff Sackmann sets [#permalink] New post 07 Oct 2009, 19:56
I am looking on the Jeff Sackmann website and I see the Extreme Challenge, Data Sufficiency Challenge, and Problem Solving Challenge. Is there any overlap in the EC, and the DSC and the PSC? Are all three of these helpful? I have read on here that the EC is very useful, but what about the other ones. I am asking becuase there is a deal for the more you buy, so before doing so, I want to get feedback on the DSC and the PSC first.
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Re: Question about Jeff Sackmann sets [#permalink] New post 08 Oct 2009, 08:58
CaliCpa wrote:
I am looking on the Jeff Sackmann website and I see the Extreme Challenge, Data Sufficiency Challenge, and Problem Solving Challenge. Is there any overlap in the EC, and the DSC and the PSC? Are all three of these helpful? I have read on here that the EC is very useful, but what about the other ones. I am asking becuase there is a deal for the more you buy, so before doing so, I want to get feedback on the DSC and the PSC first.


I'd go ahead and contact Jeff. He's generally responsive to questions about his products.

I don't think anyone here has purchased the complete set from him.

Here is some general info about Jeff's math products:
760-q49-v44-my-gmat-progress-diary-78853.html?view-post=617183#p617183

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Concentration: Finance, Entrepreneurship
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Re: Question about Jeff Sackmann sets [#permalink] New post 09 Oct 2009, 12:06
I just recieved the extreme set in my email. Dang, these are really tough...now I know what everyone has been talking about...
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Re: Question about Jeff Sackmann sets [#permalink] New post 05 Nov 2009, 05:27
CaliCpa, what made you decide to only buy the Extreme Challenge instead of a combo set?
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Re: Question about Jeff Sackmann sets [#permalink] New post 05 Nov 2009, 06:00
Expert's post
Let's keep all discussions in the same place: questions-on-sackmann-s-math-book-85173.html

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Re: Question about Jeff Sackmann sets   [#permalink] 05 Nov 2009, 06:00
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