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Question 20, section 17 of "lots of DS questions"

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isisalaska Community Manager Default Avatar
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Question 20, section 17 of "lots of DS questions"

Post Tue Feb 13, 2007 1:00 pm
Please explain this question

20. Is 5^k less than 1,000 ?
(1) 5^k-1>3000
(2) 5^k-1=5^k-500

B

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Post Wed Feb 14, 2007 8:05 pm
This is an OG question that has not been copied correctly (#131 in 11th edition).

Should be:

Is 5^k less than 1,000?
(1) 5^(k+1) > 3,000
(2) 5^(k-1) = (5^k) - 500

As I just wrote it above, the OA is B.

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banona Senior | Next Rank: 100 Posts Default Avatar
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Post Wed Feb 14, 2007 7:34 am
Hi,
I agree with amitamit2020 ; Answer should be D
Otherwise, check if expressions are as written in the original question and look at the source;

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GMAT/MBA Expert

Stacey Koprince GMAT Instructor
Joined
27 Dec 2006
Posted:
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680 members
Upvotes:
639
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780
Post Wed Feb 14, 2007 8:05 pm
This is an OG question that has not been copied correctly (#131 in 11th edition).

Should be:

Is 5^k less than 1,000?
(1) 5^(k+1) > 3,000
(2) 5^(k-1) = (5^k) - 500

As I just wrote it above, the OA is B.

_________________
Please note: I do not use the Private Messaging system! I will not see any PMs that you send to me!!

Stacey Koprince
GMAT Instructor
Director of Online Community
Manhattan GMAT

Contributor to Beat The GMAT!

Learn more about me

  • +1 Upvote Post
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Free Manhattan Prep online events - The first class of every online Manhattan Prep course is free. Classes start every week.
banona Senior | Next Rank: 100 Posts Default Avatar
Joined
30 Dec 2006
Posted:
38 messages
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1
Post Wed Feb 14, 2007 7:34 am
Hi,
I agree with amitamit2020 ; Answer should be D
Otherwise, check if expressions are as written in the original question and look at the source;

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