How to Solve Pie Chart Questions in Data Interpretation? - A Solved Example

Direction (Q.1 to 5): Study the pie chart carefully to answer the questions that follow:

Percentage-Wise Break up of Students in terms of Specialisation in MBA

   Total Number of Students = 8000

1. What is the total number of students having specialization in IR, Marketing and IT?
(a)4640
(b)4400
(c)4080
(d)4260
(e)None of these

Answer: Option(b) 4400
Explanation:
Total number of students having specialization in IR,Marketing and IT
=(16 + 22 + 17) % of 8000 
=(55/100) x 8000 
= 4400


2. Students having IB as specialization forms approximately what percent of students having Marketing as specialization?
(a)124
(b)116
(c)86
(d)74
(e)66

Answer: Option(c) 86
Explanation:
Required Percentage = (19/22) x100 = 86

3. What is the total number of students having IB as specialization?
(a)1280
(b)1360
(c)1120
(d)1520
(e)None of these

Answer: Option(d) 1520
Explanation:
Total number of students having IB as specialization
=(19/100) x8000 = 1520


4. What is the respective ratio of the students having Finance as specialization to that of students having HR as specialization?

(a)18:13
(b)11:19
(c)12:21
(d)6:7
(e)None of these

Answer: Option(d) 6:7
Explanation:
Required ratio = 12:14 = 6:7


5. Students having IR as specialization forms approximately what percent of students having HR as specialization?
(a)106
(b)76
(c)114
(d)62
(e)87


Answer: Option(c) 114
Explanation:
Required percentage = (16/14) x 100 = 114




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Aptitude Trainer - A Better Guide to Prepare Quantitative Aptitude

Quantitative Aptitude is a section where your Mathematical Skills are tested. Sound knowledge of Basic Quantitative Techniques and a regular practise would help to score high in this section.

Aptitude Trainer - Quantitative Aptitude App :

Aptitude Trainer is one such App that trains you on Basic Mathematical Principles and Formulas. Its a very useful App with excellent user interface. In Aptitude Trainer all important Mathematical Concepts are presented in an organized way. This App would be a great guide for all Competitive Exams. 

There are totally 11 Chapters :Boats and Streams, Permutation and Combinations, Probability,

Profit and Loss, Problems Based on Ages, Problems on Trains, Time and Work, Number System, Ratio and Percentage, Time and Distance, Simplification.to acquire knowledge to solve problems.

Each chapter is provided with a formula list that would help to acquire knowledge to solve problems.

                                                
There are 33 test series in the training section along with detailed explanation. Also, there is a final test where you can test back your learning along with scores.

Overall, the Aptitude Trainer would surely help to enhance your Quantitative Skills , that is required to succeed in all Competitive Examinations.


Download Aptitude Trainer App from Google play and start your preparation. All the Best :)




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How to solve Bar Diagram Questions in Data Interpretation?

Directions (Q. 1 to 5): Study the following graph and answer the questions below it:

Number of students from various faculties studying in various colleges (Number in Thousands)

1. What is the ratio of the number of students from the faculty of Arts studying in college C to the number faculty of Arts studying in college D?

(a) 13:10
(b) 9:13
(c) 13:9
(d) 10:13
(e) None of these


Answer: Option (a) 13:10

Explanation:

Number of students from the faculty of Arts:

From college C = 32500

From college D = 25000

=> Required ratio = 32500:25000 = 13:10



2. What is the average number of students studying in college A from all the faculties together?

(a) 28500
(b) 26000
(c) 26500
(d) 27000
(e) None of these

Answer: Option (e) None of these

Explanation:

Required average = (25+27.5+30)/3 = 82.5/3 = 27.5 (thousand) = 27500 



3. What is the average number of students from the faculty of Arts from all the colleges together?

(a) 26250
(b) 27250
(c) 26500
(d) 27000
(e) None of these

Answer: Option (a) 26250

Explanation:

Required average no. of Arts students = (25+22.5+32.5+25)/4  = 105/4 (thousand) = 26250
                                     

                                      

4. The students from the faculty of Commerce studying in college B are approximately what percent of the total number of students in the same college?

(a) 35
(b) 30
(c) 48
(d) 43
(e) 53

Answer: Option (d) 43

Explanation:

Total no. of students in college B = (22.5+32.5+20) thousand = 75 thousand
                                   
Number of Commerce students in college B = 32.5 thousand

=> Required percentage = (32.5/75) x 100 = 43


5. What is the difference between the total number of students from the faculty of Commerce from all the colleges together and the total number of students from the faculty of Science from all the colleges together?

(a) 25000
(b) 20000
(c) 10000
(d) 15000
(e) None of these

Answer: Option (d) 15000

Explanation:

Total number of Commerce students = (27.5+32.5+25+22.5) thousand = 107.5 thousand
                                  
Total number of Science students  = (30+20+12.5+30) thousand   = 92.5 thousand
                                
=> Required difference = (107.5 - 92.5) thousand  = 15 thousand



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Data Interpretation - An Introduction

The aim of the Data Interpretation section is to test not only your Quantitative Skills but also Relative, Comparative and Analytical Ability.

Important Points:

1. Data Interpretation is a section were questions are based on the given Data (information).

2. The data can be presented as

• Bar Diagram,
• Tabular Column, 
• Pie Chart,
• Graph. 

3. Sound Knowledge of Quantitative Techniques are required to score high in this section.

Points to Remember:

1. Get a general picture of the given data before reading the question.

2. Analyze the given data carefully with the titles given. 

3. Generally, the questions asked in this section does not require lengthy calculations. So, avoid lengthy calculations.

4. Most questions simply require reading the given data correctly and carefully applying the basic Mathematical Rules, Principles and Formulae.

5. Use only the given information and your knowledge of basic facts such as number of hours in a day to answer the questions.

6. Be careful while dealing with units.

7. Breakdown lengthy question into smaller parts and eliminate impossible choices.



We will post an example in the upcoming posts. Keep updated with us. Happy learning :)