Here is a data sufficiency question. It is a question on slopes of lines and tests basic concepts about lines in geometry and coordinate geometry.QuestionAre lines p (with slope m) and q (with slope n) perpendicular to each other?1. m + 2 = n2. m + n = 0Correct Answer: Choice C. BOTH statements (1) and (2) TOGETHER are sufficient to answer the question asked, but NEITHER … [Read more...] about GMAT DS : Geometry, Coordinate Geometry
Data Sufficiency : Number Properties & Equations
About a third of the questions that appear on the Quantitative section of the GMAT CAT test are data sufficiency (DS) questions. Here is a DS question from Number properties and number theory. Number properties and number theory is a hot favorite when it comes to setting DS questions.For the uninitiated amongst us, this is how the instructions to a DS question will look … [Read more...] about Data Sufficiency : Number Properties & Equations
GMAT – Useful percent to fraction conversion
A set of useful percent to fraction coversions that will save a lot of time when attempting problem solving questions in the GMAT Quant section. Percentages Equivalent Fraction 33.33% 1/3 16.66% or 16.67% 1/6 66.66% or 66.67% 2/3 6.66% or 6.67% 2/30 or 1/15 14.28% 1/7 12.5% 1/8 11.11% 1/9 9.09% 1/11 8.33% 1/12 7.14% 1/14 Let us say you have a question that states that a family … [Read more...] about GMAT – Useful percent to fraction conversion
1 year PGPX and PGPEX programs at IIM Ahmedabad and IIM Calcutta
One of the best things to have happened to management education in India is the introduction and fast adaptation of the one year MBA / PGP programs. ISB, Hyderabad was amongst the pioneers to launch the one year program.Subsequently, the two big daddies of Indian Management education - IIM Ahmedabad and IIM Calcutta started their own versions of 1 year MBA programs in 2006. The … [Read more...] about 1 year PGPX and PGPEX programs at IIM Ahmedabad and IIM Calcutta
Permutation Combination and Probability – Sampling with / without ordering
The next parameter on which sampling can be classified is Sampling based on whether Ordering (Arrangement) of the elements selected is considered or not. In this case too, as in the case of sampling with or without replacement let us look at two examples that will help us learn the concept better.Example 1. In how many ways can a group of students elect a President and a Vice … [Read more...] about Permutation Combination and Probability – Sampling with / without ordering