filter your search allcollegesexamnews



CAT 2015 Preparation Tips for Data Interpretation and Logical Reasoning

Last Updated - March 31, 2017

CAT 2015 to be held on November 29, 2015 in two sessions. And this year in CAT exam you will see significant changes in exam pattern. The major changes made in CAT 2015 are:

CAT exam this year will have 3 sections

  1. Quantitative Aptitude,
  2. Data Interpretation & Logical Reasoning
  3. Verbal Ability & Reading Comprehension

Further each section will have weightage divided as under:










Change in Time Duration

The time duration has been expanded from 170 minutes to 180 minutes this means

  • You will get 1 hour to attempt each section which is good news;
  • And there is no switching between sections i.e. first section will be completed in one hour and then only you can proceed to next section and so on, also you cannot go back to previous section.

Expect Non- MCQ

There would be some non-MCQ questions i.e. questions for which you will be required to write answer directly on the screen and you need to answer it in descriptive type answers. These questions will be asked in all three sections of exam.

Conclusion of Changes

All these changes are going to effect highly to the second timers as they will have to plan all over again but for the first timers, they can rejoice as these are the changes they will be looking forward to.

What it means to First timers

  • This is an opportunity of which students from all fields can make use of as earlier QA was the major factor and only engineering students could make it successfully to selection process but now students from streams like Arts, Commerce and Science can also be confident enough as the exam pattern has been changed to 3 major sections i.e. a new section is formed by of Data Interpretation from Quantitative Aptitude and Logical Reasoning from Verbal Ability & Reading Comprehension section are divided and formed in to a 3rd section.
  • A setback of this change is that students won’t get much help from previous year study material and they will have to focus rigorously on each section.

what it means to second timers

  • Second timers can also feel relaxed as they can now get enough time to complete exam with the increase in test duration but side by side they will be worried as they will have to start all over again with preparation as per all the new changes
  • But fret not all the preparation will pay off once you adjust to the new changes and these changes are welcome as there are no changes in type of questions.


Data Interpretation and Logical Reasoning

As per new changes there will be new section introduced i.e. Data Interpretation and Logical Reasoning having weightage of 32 questions. This section will have questions like:

  • Questions based on Data in tables, Graphs, Charts, and Diagrams
  • Questions based on logical games, case studies, Calendars, Cubes, Clocks, Blood relations, seating arrangements etc.

Data Interpretation


The data interpretation means analyzing the given data in a way that you utilize all the given data and you can do so by tracking the useful data and joining all the key aspects which will help you find the answers accurately.

  • You can easily cover up this section if you have acquired the required level of speed, analytical skills and decision making as these are the most important part of DI
  • You should be very quick in finding key attributes, identifying the links and logics

Logical Reasoning

This is completely based on Facts and logics of which you need to quickly study the patterns, diagrams, blood relations, sequences etc.

To increase the scores in the DI & LR section you must be very quick at solving the questions

  • You must improve your speed in calculations, you can use vedic mathematics, Do mental calculations and don’t depend on calculators, learn all the root formulas, like Squares up to 30 , Cube roots up to 20, Sq. roots up to 10, percentage formulae etc.
  • You must be well- versed with all the charts like Pie-chart, bar graph, Tables etc.
  • For LR you should highly focus on Arrangements, Averages, sets, Games, Variations, Games, Cubes, and Puzzles, etc.


Do's and Don'ts in CAT Exam


  • Take more and more online mock test
  • Prepare with keeping accuracy in mind
  • Focus on structure of Questions and then attempt the questions
  • Manage your time and follow effectively


  • Don’t keep hard and complicated questions on the last
  • Don’t run for large quantity of study material, keep few books but practice them thoroughly

How to schedule time

To be very clear the time to prepare for CAT exam is very less now and you must be panicking as the time passes and this is clear only 90 days are left for exam. But believe me you can still excel if you start preparing now onwards. You can divide the days as under:

  • 30 days to improve your skill on solving questions quickly for this you need to practice rigorously on your calculating speed, mind calculations, analytical skills, reading speed, unbiased decision making etc.
  • Next 30 days you can cover up the previous year exam papers and practice them thoroughly especially DI & LR, QA as the type of questions is not changed so you can take help from them
  • The last 30 days can be used to expertise on the overall topics in which you facing difficulties and also you should do practice according to time of the exam

Tips & Tricks for CAT Exam

The common tips for preparation is allot enough time for each topic, take mock tests, excel in arithmetic skills etc. after taking online mock tests which are based on CAT Exam pattern and time duration you will observe how you are improving gradually and the topics in which you are facing problems with. For DI & LR you can go by question to question tips & tricks as given under:

The following weightage is given to each topic in the DI & LR:

SectionsTopicsNo. of questions

Data Interpretation

Bar Graphs


Incomplete Tables


Table based


LR Based


Logical Reasoning

Minima & Maxima Concept


Seating Arrangement


Circular Arrangement


Set theory Based on grouping and patterns



Questions and Answer

DI Part

Bar Graphs

Q. In the following Bar Graph, the data regarding the cost of production and Sales revenue of the company XYZ in the given years have been given. Study the bar diagram carefully and answer the questions.


1. By what percentage is the amount received from the sales in the year 2005 of the company, more than the expenditure on production in the year 2008?

(a.) 45%                                    (b.) 40%

(c.) 48%                                    (d.) 49%


Answer is option (a.)


Sales revenue: = Rs. 725000

Cost of production in 2008 = Rs. 500000

Therefore, required percentage =225 ∕500*100 = 45%

2. In how many years the cost of production is more than the average cost of production of the given years?

(a.) 1                                 (b.) 2

(c.) 3                                 (d.) 4

(e.) None of these

Answer is option (b.)


Average production cost = Rs. {625+500+450+400+500+525/6} thousand

= 3000000/6 = Rs. 500000

Required years => 2004 and 2009

3. In how many years the sales revenue is less than the average sales revenue of the given years?

(a.) 1                                 (b.) 2

(c.) 3                                 (d.) 4

(e.) None of these

Answer is option (c.)


Average sales revenue = Rs. {750+725+550+600+800+800/6} thousand

=4225000/6 = Rs. 704 thousand

Required years 2006 and 2007


4. If the cost of production in 2004 and 2007 be increased by 25% and 30% respectively, then by what percentage will the total cost in both these years be more than the sales revenue of the year 2008?

(a.) 62.7%                                 (b.) 65.7%

(c.) 67.7%                                (d.) 68.5%

(e.) None of these

Answer is option (a.)


New production cost in the year 2004 = 625*125/ 100 = 781. 25000

New production cost in the year 2007 = 440*130/100 = Rs. 520000

Therefore, Total cost = 781.25000+520000

= Rs. 1301.25000

And Required percentage = {1301.25 -800/800}*100

= 501.25*100/800 = 62.7%

5. In which year the company had maximum profit per cent?

(a.) 2008                              (b.) 2007

(c.) 2006                                (d.) 2005

(e.) 2004

Answer is option 1


Year 2004 => {750-625/625)*100 = 20%

Year 2005 => {725-500/500)*100 = 45%

Year 2006 => {550-450/450)*100 = 22.2%

Year 2007 => {600-400/400)*100 = 50%

Year 2008 => {800-500/500)*100 = 60%

Q. In the following table information regarding publishing books by different publishers has been given. Study the table carefully and answer the questions:


1. What is the difference between the number of academic books published by the publishing houses M and P?

(a.) 450                           (b.) 640

(c.) 540                           (d.) 504

(e.) None of these

Answer is option (c.)


Academic books published by publisher M = 28200*7/10 = 19740

Academic books published by publisher P = 31200*8/13 = 19200

Required difference = 19740 – 19200 = 540

2. How many books were given to each distributor by publisher Q if each publisher gets equal no. of books?

(a.) 1806                             (b.) 1068

(c.) 1608                               (d.) 1308

(e.) None of these

Answer is option (b.)


Books distributed = 33800*79/100 = 28702

Books given to each distributor = 26702/25 = 1068

3. What is the average no. of non- academic books published by publisher R and S?

(a.) 18750                             (b.) 18850

(c.) 19950                              (d.) 18950

(e.) 19990

Answer is option (c.)


Non-academic books

Publisher R: 35700*6/17 = 12600

Publisher S: 37800*13/18 = 27300

Required average = 12600+27300/2 = 39900/2 = 19950

4. What is the total no. of books distributed by publishers O and Q?

(a.) 26702                              (b.) 27324

(c.) 55026                              (d.) 54026

(e.) None of these

Answer is option (d.)


Required no of distributed books = 29700*92/100+ 33800*79/100

= 27324+26702 = 54026

5. The ratio of number of books published by publishers P and Q is:

(a.) 156:139                              (b.) 156:169

(c.) 3:5                                      (d.) 5:17

(e.) None of these

Answer is option (b.)


Required ratio; 312:338 = 156:169

Logical Reasoning:

Q. There are five statues L, M, N, O, and P – each of them having different height, Statue L is smaller than only statue M. Statue O is smaller than only statue N. Statue O is longer than statue P. The height of the tallest statue is 20 feet. The height of the second smallest statue is 11 feet.

1. What will be the height of statue?

(a.) 13 feet                    (b.) 15 feet

(c.) 9 feet                      (d.) 12 feet

(e.) 14 feet

Given: Statue L is smaller than only M; therefore M is the smallest statue

N > O > P

So, M > L > N > O> P

Where M is 20 feet and O is 11 feet

Answer is option (c.)

Explanation: statue P is the smallest, the height of the second smallest statue O is 11 feet. Therefore the height of the statue of P will be less than 11 feet.

2. What will be the height of third smallest statue?

(a.) 13 feet                    (b.) 10 feet

(c.) 19 feet                      (d.) 9 feet

(e.) 11 feet

Answer is option (a.)

Explanation; the tallest statue is 20 feet high. Therefore the second tallest statue may be 19 feet, 18 feet high. Therefore, the third smallest article will be less than 19 feet and more than 11 feet.

3. If the expressions S = T > O ≥ R and P ≤ O ≤ Z are true, then which of the following is not true?

(a.) T > O                    (b.) R < S

(c.) Z > R                      (d.) P > T

(e.) P < Z

Answer is option (d.)

Explanation: S = T > O ≥ R

P ≤ O < Z

S = T > O ≥ P

Z > O ≥ R

P ≤ O ≥ R

P is smaller than T

Q. Eight persons - H, I, J, K, L, M, N, and O, - are standing in a straight line at equidistant. Some of them are facing north while some other are facing south. M is standing third to the right of H. M is standing at one of the extreme ends. L is standing third to the left of H. The immediate neighbors of J face north. N is not the immediate neighbor of H. The persons standing at the extreme ends face the same direction (both are facing either north or south). The immediate neighbors of H face just opposite direction as that of M. The immediate neighbors of O face opposite directions with respect to each other. One of the immediate neighbors of L is K who is facing north. I is standing between J and M. Not more than 4 persons are facing north.

Q. Who among the following is third to the left of N?

(a.) K                    (b.) J

(c.) H                     (d.) I

(e.) O


Answer is option (b.) N is facing south therefore; J is the third to the left of N.

Q. The immediate neighbors of L are:

(a.) M & N                    (b.) N& O

(c.) K & N                      (d.) N & H

(e.) J & H

Answer is option (c.) the immediate neighbors of L are K and N

Q. How many persons are standing exactly between J and O?

(a.) Three                    (b.) Four

(c.) One                      (d.) Two

(e.) None

Answer is option (d.) 2 persons H and J are standing between J and O.

Q. Who among the following is immediate left of H?

(a.) O                    (b.) J

(c.) I                     (d.) L

(e.) K

Answer is option (a.) O is the immediate left of H

CAT Expected CutoffHow to Crack CAT Exam

Q. Four of the following five are alike in a certain way based on the above arrangement and hence form group. Which one of the following does not belong to the group?

(a.) N                    (b.) L

(c.) O                    (d.) I

(e.) K

Answer is option (e.) Except K, all other are facing south. K faces north

Q. Who among the following is exactly between L and J?

(a.) N                    (b.) O

(c.) H                      (d.) I

(e.) None

Answer is option (b.) O is sitting exactly between L and J

Q. Who among the following is fourth to the right of J?

(a.) N                    (b.) I

(c.) H                      (d.) L

(e.) K

Answer is option (d.) L is to the fourth of J


Reference Books

1. How to prepare for Data Interpretation for CAT – 1st edition by Author Arun Sharma, ISBN 10 no. 1259003833, publishing house- TMH publishers.

About the book: This book is specialized in Data Interpretation and Data Sufficiency. The book is divided in to 12 parts part 1 has 6 chapters describing DI, Tables, Bar Charts, X-Y Charts, Pie-charts,  and case studies. The part 2 of the book is focused on developing arithmetic’s ability and speed. The rest parts of the book contains series of test papers, model papers, questions from other MBA exams like XAT, SNAP, also questions from Quantitative Aptitude, Verbal Ability, Logical reasoning with previous year CAT question paper from 2003 to 2008 as well as some sample papers.

2. Accredited Guide to Data Entry and Data Sufficiency – by Author Ashisha A, ISBN 10 no. 9350942127, Publishing House- Arihant Publications

About the book: A nice book for first timers to start with this chapter wise to get all the basic concepts is cleared by behind the questions basic approach of the book. The book contains all types of questions with solutions and proper guidelines. It includes all types of charts, data tables, case studies and data sufficiency questions. The chapters include exercises graded on the difficulty scale.  Also question papers from different exams are also discussed in the book

3. How to prepare for Logical Reasoning for CAT – 1st edition by Arun Sharma, ISBN 10 no. 1259003868, and publishing House – TMH publishers

About the book: A compilation of all the important concepts of logical reasoning i.e. Blood relations, sequences and series, mathematical operations, statements and assumptions, statements and conclusions, direction test, assertion and reason etc. The book also covers Quantitative aptitude reasoning  and verbal ability reasoning like arrangements reasoning, ranking based reasoning, formation of teams, puzzle test, logical deduction, binary logic, network diagrams, Venn diagrams, set theories, etc. It focuses on teaching students on how to solve the problems quickly and accurately by using methods like reaction tracker etc.

READ ABOUT CAT Preparation Tips 

Also Read

CAT Preparation

CAT Practice Papers

CAT Paper Analysis for QA section

CAT Registration



No Comments To Show


Related News & Articles

2017-10-13 15:54:45CAT 2017

CAT 2019

CAT 2019 (Common Admission Test) is a national lev ...

2017-10-11 18:46:06CAT 2017

Top 10 Tips to Ace CAT 2017 i ..

With little more than a month left for CAT 2017, a ...

2017-10-11 17:55:31CAT 2017

Top 5 Online Forums for CAT 2 ..

Candidates can checkout list of top 5 online forum ...

2017-10-09 18:56:50CAT 2017

FMS, Delhi MBA Admissions thr ..