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Of the 1,000 companies responding to a certain survey, what

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Of the 1,000 companies responding to a certain survey, what [#permalink] New post 01 Feb 2014, 18:13
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Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?

(1) 200 of the companies did not indicate that they had a business recovery plan.

(2) The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan.
[Reveal] Spoiler: OA

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Last edited by Bunuel on 02 Feb 2014, 01:56, edited 1 time in total.
Edited the question.
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Re: Of the 1,000 companies responding to a certain survey, what [#permalink] New post 02 Feb 2014, 01:59
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Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?

(1) 200 of the companies did not indicate that they had a business recovery plan. This implies that the remaining 800, or 80%, indicated that they had a plan. Sufficient.

(2) The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan. {Indicated} + {Indicated}/4 = 1,000 --> {Indicated} = 800, or 80%. Sufficient.

Answer: D.

Hope it's clear.
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Re: Of the 1,000 companies responding to a certain survey, what [#permalink] New post 02 Feb 2014, 16:06
Bunuel wrote:
Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?

(1) 200 of the companies did not indicate that they had a business recovery plan. This implies that the remaining 800, or 80%, indicated that they had a plan. Sufficient.

(2) The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan. {Indicated} + {Indicated}/4 = 1,000 --> {Indicated} = 800, or 80%. Sufficient.

Answer: D.

Hope it's clear.


Bunuel,

My question is that in Statement 1, no where its mentioned that remaining 80% had a plan. Is it right to assume in DS questions?
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Re: Of the 1,000 companies responding to a certain survey, what [#permalink] New post 03 Feb 2014, 01:19
Expert's post
Mountain14 wrote:
Bunuel wrote:
Of the 1,000 companies responding to a certain survey, what percent indicated that they had a business recovery plan?

(1) 200 of the companies did not indicate that they had a business recovery plan. This implies that the remaining 800, or 80%, indicated that they had a plan. Sufficient.

(2) The number of companies that indicated that they had a business recovery plan was 4 times the number that did not indicate that they had a business recovery plan. {Indicated} + {Indicated}/4 = 1,000 --> {Indicated} = 800, or 80%. Sufficient.

Answer: D.

Hope it's clear.


Bunuel,

My question is that in Statement 1, no where its mentioned that remaining 80% had a plan. Is it right to assume in DS questions?


Actually no such assumption was made, it's a fact.

There are only two answers to the question "do you have a plan?":
YES.
NO.

If NO=800, then YES=1000-800=200. How else?
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Re: Of the 1,000 companies responding to a certain survey, what [#permalink] New post 03 Feb 2014, 15:21
As it is a DS question, i think, it would be much clear had the question mentioned that " All respondents have answered the question". Question is binary so "yes or no answer can be assumed"
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Re: Of the 1,000 companies responding to a certain survey, what [#permalink] New post 04 Mar 2014, 06:21
sidpopy wrote:
As it is a DS question, i think, it would be much clear had the question mentioned that " All respondents have answered the question". Question is binary so "yes or no answer can be assumed"


I think we can assume that all have responded as the question states "Of the 1,000 companies responding to a certain survey"
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Re: Of the 1,000 companies responding to a certain survey, what [#permalink] New post 05 Mar 2014, 23:21
Guys, I'm new to this forum. For some reasons, I cannot see the last 3 options for all the questions posted in this forum. Pls suggest if I'm missing something? Thanks a ton
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Re: Of the 1,000 companies responding to a certain survey, what [#permalink] New post 05 Mar 2014, 23:44
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varunmalhotra wrote:
Guys, I'm new to this forum. For some reasons, I cannot see the last 3 options for all the questions posted in this forum. Pls suggest if I'm missing something? Thanks a ton


This is a data sufficiency question. Options for DS questions are always the same.

The data sufficiency problem consists of a question and two statements, labeled (1) and (2), in which certain data are given. You have to decide whether the data given in the statements are sufficient for answering the question. Using the data given in the statements, plus your knowledge of mathematics and everyday facts (such as the number of days in July or the meaning of the word counterclockwise), you must indicate whether—

A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient to answer the question asked.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient to answer the question asked.
C. BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER statement ALONE is sufficient to answer the question asked.
D. EACH statement ALONE is sufficient to answer the question asked.
E. Statements (1) and (2) TOGETHER are NOT sufficient to answer the question asked, and additional data specific to the problem are needed.

I suggest you to go through the following post ALL YOU NEED FOR QUANT.

Hope this helps.
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NEW TO MATH FORUM? PLEASE READ THIS: ALL YOU NEED FOR QUANT!!!

PLEASE READ AND FOLLOW: 11 Rules for Posting!!!

RESOURCES: [GMAT MATH BOOK]; 1. Triangles; 2. Polygons; 3. Coordinate Geometry; 4. Factorials; 5. Circles; 6. Number Theory; 7. Remainders; 8. Overlapping Sets; 9. PDF of Math Book; 10. Remainders; 11. GMAT Prep Software Analysis NEW!!!; 12. SEVEN SAMURAI OF 2012 (BEST DISCUSSIONS) NEW!!!; 12. Tricky questions from previous years. NEW!!!;

COLLECTION OF QUESTIONS:
PS: 1. Tough and Tricky questions; 2. Hard questions; 3. Hard questions part 2; 4. Standard deviation; 5. Tough Problem Solving Questions With Solutions; 6. Probability and Combinations Questions With Solutions; 7 Tough and tricky exponents and roots questions; 8 12 Easy Pieces (or not?); 9 Bakers' Dozen; 10 Algebra set. ,11 Mixed Questions, 12 Fresh Meat

DS: 1. DS tough questions; 2. DS tough questions part 2; 3. DS tough questions part 3; 4. DS Standard deviation; 5. Inequalities; 6. 700+ GMAT Data Sufficiency Questions With Explanations; 7 Tough and tricky exponents and roots questions; 8 The Discreet Charm of the DS ; 9 Devil's Dozen!!!; 10 Number Properties set., 11 New DS set.


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Re: Of the 1,000 companies responding to a certain survey, what   [#permalink] 05 Mar 2014, 23:44
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