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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 24 Apr 2011, 01:14
1
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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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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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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New post 28 Nov 2019, 23:05
Hi,

Could someone expand on this a little?

Superficial Parallelism vs. Actual Parallelism
Sometimes you need to subordinate certain elements (e.g., it is not safe to assume that all verbs and verb forms need to be parallel).
You need to be especially careful with verbs and verb forms.
Example 1
Wrong: “Sal applied himself in this new job, arrived early every day, skipped lunches regularly, AND left late every night.”
Right: “Sal applied himself in this new job, arriving early every day, skipping lunches regularly, AND leaving late every night.”
Example 2
Wrong: “Wild pandas roam the forests and eat bamboo all day long.”
Right: “Wild pandas roam the forests eating bamboo all day long.”
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Re: Slingfox's GMAT Strategies (Condensed)   [#permalink] 28 Nov 2019, 23:05

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