IMP-DS questions: Basic Strategy

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IMP-DS questions: Basic Strategy

by rishijhawar » Thu May 24, 2012 7:16 am
Hi, I have two questions:

A) Is it possible that in a DS question, both statements are sufficient to answer the question but the answers are different using both the statements?

Per the link, which discusses DS strategies,(Link: https://www.veritasprep.com/blog/2011/07 ... trategies/) the expert says that "the statements can never contradict each other. Knowing this, if your answers for statement 1 and statement 2 are different, you must go back and reconsider your math".

Upon reflection, I realized that a DS question tests whether the statements are SUFFICIENT to answer the question. So, even if both the statements give different answers, can't we say that they are still SUFFICIENT? In the DS question below (from a private tutor's material), both statements result different answers and HENCE, to me, are SUFFICIENT. Please throw some lights to this?

Question: In how many ways can a group of person be seated on chairs placed around a circular table?
1. There are 4 persons in the group and 4 chairs around the table.
2. There are 4 persons in the group and 5 chairs around the table.

B) Can you guys please guide me how the DS principle works in Yes/No questions?
Source: — Data Sufficiency |

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by agarwalva » Thu May 24, 2012 1:56 pm
rishijhawar wrote:Hi, I have two questions:

A) Is it possible that in a DS question, both statements are sufficient to answer the question but the answers are different using both the statements?

Per the link, which discusses DS strategies,(Link: https://www.veritasprep.com/blog/2011/07 ... trategies/) the expert says that "the statements can never contradict each other. Knowing this, if your answers for statement 1 and statement 2 are different, you must go back and reconsider your math".

Upon reflection, I realized that a DS question tests whether the statements are SUFFICIENT to answer the question. So, even if both the statements give different answers, can't we say that they are still SUFFICIENT? In the DS question below (from a private tutor's material), both statements result different answers and HENCE, to me, are SUFFICIENT. Please throw some lights to this?

Question: In how many ways can a group of person be seated on chairs placed around a circular table?
1. There are 4 persons in the group and 4 chairs around the table.
2. There are 4 persons in the group and 5 chairs around the table.

B) Can you guys please guide me how the DS principle works in Yes/No questions?

both the statements will always give you one answer.. as you are trying to solve one problem with some pieces of information....Remember it is one problem
In the questions stated above you have two different problems