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Looking for a problem from diff source similar to OG PS # 8

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Looking for a problem from diff source similar to OG PS # 8 [#permalink] New post 18 Feb 2013, 17:09
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I am looking for a different problem similar to OG PS #8. For some reason, I am having a hard time understanding this problem and the wording. I was wondering if any one know a similar problem that I can test this similar concept?
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Re: Looking for a problem from diff source similar to OG PS # 8 [#permalink] New post 19 Feb 2013, 04:26
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Big4Advisory wrote:
I am looking for a different problem similar to OG PS #8. For some reason, I am having a hard time understanding this problem and the wording. I was wondering if any one know a similar problem that I can test this similar concept?


Are you talking about the following question: when-1-10-percent-of-5-000-is-subtracted-from-1-10-of-136561.html ?
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Re: Looking for a problem from diff source similar to OG PS # 8 [#permalink] New post 19 Feb 2013, 08:45
Bunuel wrote:
Big4Advisory wrote:
I am looking for a different problem similar to OG PS #8. For some reason, I am having a hard time understanding this problem and the wording. I was wondering if any one know a similar problem that I can test this similar concept?


Are you talking about the following question: when-1-10-percent-of-5-000-is-subtracted-from-1-10-of-136561.html ?


Yes. I am having trouble with the wording. 1/10 percent. In some explanations I've read that 1/10 should be divided by 1/100, but shouldn't it be 1/10 * 1/100 to = 1/1000 of 5,000?

I made this error twice, so I am trying to find a similar problem to test my understanding.

Also, thank you for your response.
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Re: Looking for a problem from diff source similar to OG PS # 8 [#permalink] New post 19 Feb 2013, 09:21
Big4Advisory wrote:

Yes. I am having trouble with the wording. 1/10 percent. In some explanations I've read that 1/10 should be divided by 1/100 , but shouldn't it be 1/10 * 1/100 to = 1/1000 of 5,000?


The part I've highlighted is not correct. It should be divided by 100 (not by 1/100). Dividing by 100 is mathematically the same as multiplying by 1/100. So the answer to your question is 'yes' - you've done the calculation correctly.
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Re: Looking for a problem from diff source similar to OG PS # 8 [#permalink] New post 07 Mar 2013, 15:06
Big4Advisory,

I will give you two related problems that I know trip up students. What troubles most students is dealing with percentage quantities that are less than 1, say 0.3%.

Question#1:
Which of the following is equal to 1/4 of 0.01 percent?
A) 0.000025
B) 0.00025
C) 0.0025
D) 0.025
E) 0.25

Answer:
[Reveal] Spoiler:
A


Question#2:
0.2% =
A) 1/5
B) 1/50
C) 1/200
D) 1/500
E) 1/5000

Answer:
[Reveal] Spoiler:
D


They are both written by ETS, the guys who wrote OG PS#8, which is an old GMAT problem. I am doing this based on memory so there may be slight differences in the answer choices.

Cheers,
Dabral
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Re: Looking for a problem from diff source similar to OG PS # 8   [#permalink] 07 Mar 2013, 15:06
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Looking for a problem from diff source similar to OG PS # 8

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