I have lots of queries about di, from paper 1st. means i cant understand how to prepare for this unit.

Sapare bhavani bai Best Answer

Tricks to Crack Data Interpretation The aim is to test not only quantitative skill but also relative, comparative and analytical ability. The crux of the matter is to find a relationship between the two tables or graphs before attempting the questions. Data Interpretation questions are based on the information given in tables and graphs. These questions test your ability to interpret the information presented and to select the appropriate data for answering a question Get a general picture of the information before reading the question. Avoid lengthy calculations generally, data interpretation questions do not require to do extensive calculations and computations. Most questions simply require reading the data correctly and carefully. Breakdown lengthy questions into smaller parts and eliminate impossible choices. Answer the questions asked and not what you think the questions should be. Tables are often used in reports, magazines and newspaper to present a set of numerical facts. FEW IMPORTANT AREAS Percentage and Ratio applications: These two chapters from Quantitative Aptitude has a certain role to be played in DI calculation. This has been seen most of the question in UGC NET exam are based on Percentage and Average Calculation. A ratio is another important topic to care about. Master your Percentage, Ratio, Profit and Loss, Average, Interest Calculations You should Master your two-digit addition which will enhance your calculation speed Some other necessary things are learned multiplication tricks for three/four digits, Square, Cube. Avoid Unnecessary Calculation Approximation techniques: A very large number of these questions check your ability to compare or calculate fractions and percentages. If you sit down to actually calculate the answer, you would end up spending more time than required. Here are a few ideas that you can use for approximation. Learn the concept of Approximations and Estimations. These are very important to solve DI questions very fast. When trying to calculate (approximate) a fraction p/q, add value to the denominator and corresponding value to the numerator before calculating (approximating). If the percentage growth rate is r for a period of t years, the overall growth rate is approximate: rt + t * (t-1) * r2 / 2. Follow RS Aggrawal Book Calculation Techniques specific to the data sets: There are calculation techniques especially in case of Pie Chart, Line Chart and Bar chart that one should know to reduce the calculation time. Pie Chart is a circular form of Data representation. In this, the circle is divided into sectors either percentwise or degree-wise. In the per cent-wise division, the total area of the chart is taken to be 100% and in degrees division, the total area of the chart is taken to be 360o. Don’t use calculators while Practice: Solve questions in the order in which they appear: It is usually seen that the answer to the first question is useful in solving the next question. So it is advisable that you solve the questions in the order in which they appear. Also if you make mistakes while calculating the first question, you will most probably make mistakes in the subsequent questions. So be double sure of your answers.