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Slingfox's GMAT Strategies (Condensed)

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Re: Slingfox's GMAT Strategies (Condensed) [#permalink]

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New post 10 Jan 2011, 23:56
Great notes and thanks for sharing.
I was scanning through the Quant notes and did see some typos.
Page 7: 7^3 is 343 and (1+4^4) is 257.
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Re: Slingfox's GMAT Strategies (Condensed) [#permalink]

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New post 17 Apr 2011, 11:24
Nice guide. Looking through it I noticed the following:

Quote:
Special Properties of Exponential Expressions Involving 1 or 0
1^n = 1
x^0 = 1 (Exception: 0^0 = Undefined)
0^n = 0 (Exception 0^0 = Undefined)


Should the exception for 0^n read "0^n is undefined when n is less than or equal to zero)? I would think 0^-1 = 1/0 = undefined (can't divide by zero)

I tried googling but couldn't find an answer.
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Re: Slingfox's GMAT Strategies (Condensed) [#permalink]

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New post 24 Apr 2011, 01:14
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TheRake wrote:
Nice guide. Looking through it I noticed the following:

Quote:
Special Properties of Exponential Expressions Involving 1 or 0
1^n = 1
x^0 = 1 (Exception: 0^0 = Undefined)
0^n = 0 (Exception 0^0 = Undefined)


Should the exception for 0^n read "0^n is undefined when n is less than or equal to zero)? I would think 0^-1 = 1/0 = undefined (can't divide by zero)

I tried googling but couldn't find an answer.


Yes, 0^x is undefined when x is negative, not that a real GMAT question would ever allow for that possibility.
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Re: Slingfox's GMAT Strategies (Condensed) [#permalink]

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New post 04 May 2011, 19:17
Wonderful stuff Slingfox. I had a question about your Quant review...I remember doing this problem before but cannot seem to figure it out now. Can you please explain this, preferably with a more complicated example? Thanks..
 Ratio problem/locate a point on a line segment:
o Coordinate A is at (0,0) and coordinate B is at (4,4). Find the point that is 3 times away from B as A on line segment AB.
 Approach: You need to find dx which is the incremental change in X, and dy which is the incremental change in Y.
 Total change in x = 4 = 4dx
o =1
 Total change in y = 4 =4dy
o dy = 1
 Answer: (0 + 1*dx, 0 + 1*dy) = (1,1)
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GMAT 9: 740 Q49 V42
GMAT 11: 500 Q47 V33
GMAT 14: 760 Q49 V44
WE: Supply Chain Management (Energy and Utilities)
Slingfox's GMAT Strategies (Condensed) [#permalink]

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New post 18 Oct 2011, 17:39
Great Stuff...thanz a ton for the details...just a quesry...

the statement
Example: S/T = 64.12. Which of the following could be a remainder when S is divided by T? 2, 4, 8, 12, 20, 45.
Answer. 12/100 = 3/25. This means that when S is divided by T, the remainder must be a multiple of 3. Therefore, 45 is the answer.


i believe the answer should be 12.if you divide 12 by 100,it clearly leaves 12...

please help,any comments are welcome
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Re: Slingfox's GMAT Strategies (Condensed) [#permalink]

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New post 19 Oct 2011, 13:59
sranjan83 wrote:
Great Stuff...thanz a ton for the details...just a quesry...

the statement
[o Example: S/T = 64.12. Which of the following could be a remainder when S is divided by T? 2, 4, 8, 12, 20, 45.
 Answer. 12/100 = 3/25. This means that when S is divided by T, the remainder must be a multiple of 3. Therefore, 45 is the answer.
]


i believe the answer should be 12.if you divide 12 by 100,it clearly leaves 12...

please help,any comments are welcome


BUMP! I would like to know how to approach these kind of problems as well.
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Re: Slingfox's GMAT Strategies (Condensed) [#permalink]

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New post 13 Mar 2017, 22:18
Awesome man. Thanks for sharing.
Re: Slingfox's GMAT Strategies (Condensed)   [#permalink] 13 Mar 2017, 22:18

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Slingfox's GMAT Strategies (Condensed)

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