How to Solve Data Interpretation Questions in IBPS PO Mains
Dear Friends, today we are going to discuss probably the toughest section of IBPS PO Mains exam, Data Analysis and Interpretation. Until the last year IBPS PO had Data Analysis and Interpretation section under “Numerical Ability” section, but this year the pattern has been set similar to SBI PO exam. With similar marking scheme, a number of questions and allotted time, we can safely assume that the difficulty level will also be the same, if not higher.
Last year IBPS PO Exam had 20 Questions of DI out of total 50 questions. But this year, there will be at least 25 questions on DI out of total 35 questions. So one can easily gauge the increased importance of DI this year. Let’s now discuss various types of DI questions along with the right approach to solve them accurately and within the time limit.
How To Solve IBPS PO DI & DA Questions
Data interpretation is the most scoring as well as the time-taken section in IBPS and also other competitive examinations. In quantitative/ numerical aptitude part, there will be at least two (2) data interpretation sets each having around five (5) questions. In Probationary Officer Level Examination there are 40 to 50 questions of quantitative aptitude section and the sectional cutoff for the same is approximately 17-20. So if you solve those two sets correctly, you need to crack 10 questions out of remaining 40. Here are few important tools to make data Interpretation calculations fast and easier.
- Visual Optimisation.
- Finding Average.
- Faster Calculation.
Preparation of IBPS PO Date Interpretation Section
In every baking examination, there are 2 sets of Data Interpretation questions were asked in each slot. Here we are providing some information to help you all understand this topic in an efficient way.
Data Interpretation is a major part of Quantitative Aptitude section for IBPS PO Examination. First of all, you have to know what does Data Interpretation exactly mean?
Interpretation is the process of making sense of numerical data that has been collected, analysed, and presented. It is an important critical thinking skill that helps in graphs and tables
Majority of questions asked in the Data Interpretation Section are based on the following topics:
Tabular Presentation – Tabular Presentation is the method of representing data through Horizontal Rows and Vertical Columns which makes it easy to understand. Sometimes some cells are left blank which are to be filled to find the answer. For eg –
Study the following table and answer the questions that follow (All figures in ‘000s)
|Food & Rent||Installment for Car||Income Tax @10%|
What is the average amount of money spent on food & Rent during this period?
If Income Tax increases to 20%, then what will be the net decrease in Savings?
Total expenditure on all these items in 2013 was approximately what percent of the total expenditure in 2016?
Solution: First of all we need to analyse the table. Fill in only those blanks which are required in questions. For eg., only the below data in red are required to be found out for the given questions
|Food & Rent||Installment for Car||Income Tax @10%|
- (a) Required Average = (300 + 330 + 400 + 450 + 450)
- (b) As per the table, the present rate of tax is 10%. At 20% the Tax doubles.
New Tax = (50+55+60+70+75) x 2 = 310 x 2 = 620
Increase in Tax = Decrease in Savings = 310
- (b) Required Percentage = (330 + 50 + 55) x 100
(450 + 0 + 75)
= 82.85 ≈ 83
Bar Graphs – Bar Graphs are one of the easiest and the most commonly used methods of representing Data. Below bar graph shows Packets sold by a company in six months. Based on available data, answer the following questions. The types of DI graphs/charts that you may get in the banking exams –
- Pie Charts
- Line Charts
- Bar Graphs
- Tabular Charts
- Mixed Graphs
What is the average number of packets sold during this period?
What is the percentage increase in the number of packets sold from April to May?
If the cost of each packet is Rs 50/-. Then find a sale of the company in the second quarter of the year.
Solution) Bar graph questions require extensive use of elementary mathematics tools like Average, Ratio, Addition and Subtraction. Basic knowledge of these along with rigorous practice is the key here.
- (b) Required Average = (8000 + 9500 + 3500 + 7000 + 12000 + 5000)
- (c) Percentage Increase = (12000-7000) x 100
- (d) Months in the second quarter = April, May & June.
Total packets sold in second quarter = 7000 + 12000 + 5000 = 24000
Total Sale = 24000 * 50 = Rs 1200000/-
Line Graphs (X-Y Charts)
- X-Y graphs are used where a large amount of data is to be presented in a convenient and compact way. Line Graphs generally contain a lot of hidden information and hence it requires ample practice. Below graph shows the enrollment status of children in a school. Answer the questions that follow the graph. Till 2012, the school had 1000 students
Find the total increase/decrease of children in the school
- Increase 150
- Decrease 150
- Increase 250
- Decrease 250
The strength of school changed from 2014 to 2016 by what percent?
- Increased by 9.5%
- Decreased by 9.5%
- Increased by 14.3%
- Decreased by 14.3%
The number of students in the year 2017 is?
Solution) Line Graph questions require persistence and practice. They may seem tricky at first but as simple as bar graphs. In fact, Line graphs and Bar Graphs can easily be interchanged into one another. Procedure to solve them is also similar.
- (c) No. of children who joined school = 500 + 550 + 800 + 600 + 650 = 3100
No. of children who left school = 400 + 600 + 550 + 700 + 600 = 2850
Difference = 3100 – 2850 = 250
- (c) Strength of School in 2014 = Initial strength + children who joined school till 2014 – children who left school till 2014
= 1000 + 500 + 550 – 400 – 600 = 1050
Strength of School in 2016 = Strength 2014 + 800 + 600 – 550 – 700 = 1200
Percentage Change = ((1200-1050)/1050) x 100 = 14.3%
- (d) Number of students in 2017 = Strength of School in 2016 + 650 – 600
Pie charts are the trickiest type of Charts as the data is provided in the form of a sector of a circle. They are also most commonly asked the type of chart. The easiest way to solve these is by solving the question in degrees or percentage and then converting the final answer in the given figures. Below example will certainly help you. Take Total money = 200000
Find the difference in Amount of money spent on Rent and Food.
Find the total money allotted to transportation and Rent
If the amount of saving is to be doubled by taking equal share out of remaining three, then the remaining money for food will be?
Solution) We will solve this question entirely in percentage. Same approach can be used when question comes in degrees or radians
- (b) Rent = 15%
Food = 45%
Difference = 45-15 = 30% = (30 x 200000)
- (a) Rent = 15%
Transportation = 10%
Total= 10+15 = 25% = (25 x 200000)
- (c) At present savings have 30% share. To double, it requires 10% each from each section including food.
Remaining share of food = 35%
= (35 x 200000)
Caselets: Caselets are the most peculiar cases of Data Interpretation. They are not only extremely difficult but also sometimes the only difference between success and failure for many candidates. Caselets consists of data in paragraph form. Students are required to convert into a table form for solving questions.
- Read the caselets carefully before directly jumping to solve them.
- Arrange the given info in an order an try to form a table with as much data as you can fill from the given para.
- Don’t jump to conclusions unless they are well written in the question.
In the end, its practice that will give you confidence and make you habitual of solving tricky questions. Download gradeup app to practice unlimited free practice quizzes & mock test for all Banking exam.
Tips To Solve Data Interpretation Section
- Students always keep in their head that in the circular Graph or Charts 100% = 360 Degree.
- Remember all formulas and concept of Percentage, Average, Approx Value and Ratio.
- While attempting the DI Graph question, keeps in mind that which Type of Graph is using in the question. It will help in getting the right answer.
- Read the question properly and try to interrupt in the question because every bank wants the PO who can handle and play with numbers of Figures just in few seconds.
- The whole of the DA/ DI concept is based on calculation/ numbers, so if you want to be perfect in that don’t even use the calculator or any other device for calculation at home while practising. One who can know the trick of calculating fast and accurate even large numbers without a calculator has more than 50% to crack the aptitude section easily.
- Try to use your brain while solving data interpretation questions. Just write an important line on the paper and calculate in your mind. This can be done only by practising more and more numerical questions.
- Please don’t feel confused and no need to try and solve all the questions only Focus on questions in which you are fully sure or more familiar. Do not touch any question which you do not confirm or have any doubts.
- Try to solve all types of Questions while practising. This will not confuse you in the exam and you get to know from where it has been asked.
To get more details of IBPS PO Mains Examination Tips and Tricks for other section, kindly visit our official page. You can do a mock test to check the performance, solve last year sample paper, model paper for better preparation. For any doubt or query, do comment in the below box. We can solve it as soon as possible.