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You are here: Home / Archives for GMAT Data Sufficiency

GMAT Data Sufficiency

Progressions – AP – Data Sufficiency

September 10, 2012 By K S Baskar Leave a Comment

A data sufficiency question from Arithmetic Progression.QuestionWhat is the 6th term of the Arithmetic sequence?1. The sum of the 6th to the 12th term of the sequence is 77.2. The sum of the 2nd to the 10th term of the sequence is 108.Correct Answer : Choice B. Statement 2 alone is sufficient; statement 1 is not sufficient.Explanatory Answer We have to find the 6th term of an … [Read more...] about Progressions – AP – Data Sufficiency

GMAT Inequalities Modulus DS

July 21, 2012 By K S Baskar Leave a Comment

HiHere is a GMAT DS question from the topic Inequalities. Tests concepts of modulus.QuestionIs |a| > |b|?1. 1/(a - b) > 1/(b - a)2. a + b < 0Correct Answer : Choice C. Both statements together are sufficient.Explanatory AnswerWe need to determine whether |a| is greater than |b|. The answer to this question will be a conclusive 'yes' if |a| > |b|.The answer will be a … [Read more...] about GMAT Inequalities Modulus DS

Inequalities Data Sufficiency

May 23, 2012 By K S Baskar Leave a Comment

Inequalities and Data Sufficiency are a great combination. Many interesting questions have been framed in the DS format from this topic. Here is an interesting question Is a < b? 1. a^b < b^a 2. a/b > 1 This is a good question because it helps us consider several possibilities for examples. Let us start with Statement I alone: 1. a^b < b^a Now, if a … [Read more...] about Inequalities Data Sufficiency

Number Properties Data Sufficiency

May 10, 2012 By K S Baskar Leave a Comment

Here is an interesting data sufficiency question.How many of the numbers x, y, and z are positive if each of these numbers is less than 10?1. x + y + z = 202. x + y = 14Correct Answer : Choice A. Statement 1 alone is sufficient; Statement 2 is not sufficient.Explanatory Answer:Statement 1 : x + y + z = 20. From the question stem we know that each number is less than 10.So, x … [Read more...] about Number Properties Data Sufficiency

DS Equations, Roots

March 30, 2012 By K S Baskar Leave a Comment

A DS question on equations and roots. QuestionIs y = 7?1.    (x - 3) = 02.    (x - 3)(y - 7) = 0Correct Answer : Choice E. Data is insufficientExplanatory AnswerThe given question is an "Is" question. The data provided is sufficient to answer the question if we are able to conclusively answer with an Yes or a No to the question. Else the data is … [Read more...] about DS Equations, Roots

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