How to Solve Caselets DI Questions in RBI Grade B Exam

Caselets Data Interpretation (DI) questions feature in the RBI Grade B Phase 1 exam. It is part of the Quantitative Aptitude section. These questions are constructed to test candidates’ ability to analyze and interpret data presented in a caselet format. This topic can greatly improve your total score. Mastering these questions, therefore, is of utmost importance. The ability to quickly solve Caselets DI will not only improve your performance in the DI part but also improve your time management skills. In this blog, we will provide you with important practice questions with solutions, packed with practical tips needed to master Caselets DI questions.

Important Caselets DI Questions and Solutions

Caselets DI involves understanding data presented in paragraphs, tables, or charts. It is important to find key details quickly and make calculations in an organized manner to solve these questions competently in the exam. So, the candidates should be ready to face the questions based on diverse topics like:

• Profit and loss
• Speed and distance
• Percentages
• Averages, and more.

Below, we have provided you with a few important questions to practice. These questions will help you gain knowledge of the format and the techniques needed to solve Caselets DI questions effectively.

Important Caselets DI Questions

Directions: Answer the questions based on the information given below.

In January, a sports company, Fox Pvt. Ltd conducted a survey in Delhi to find out about the popularity of three types of sports i.e., Cricket, Football and Rugby among its customers. Total number of people (men + women) who participated in the survey was ‘P’. A total number of people who like Cricket, Football, and Rugby was 150, 200, and 180, respectively. The number of people who like only cricket was equal to na umber of people who like exactly two types of sports. The number of people who like all 3 sports were (1/5)th of number of people who like Cricket, while a number of people who didn’t like any of the given three sports were (1/3)rd of number of people who like all three sports. The number of people who like only Rugby were 25% less than number of people who like only Cricket, which was 20% less than number of people who like only Football.

Question 1: What is the value of ‘P’?

A) 360

B) 382

C) 392

D) 400

E) 530

Question 2: How many people like both Football and Rugby?

A) 90

B) 88

C) 76

D) 86

E) Cannot be determined

Question 3: What is the difference between number of people who like both Cricket and Football and number of people who like both Rugby and Football but not Cricket?

A) 20

B) 22

C) 34

D) 30

E) 14

Question 4: What is the number of people who like neither cricket nor football?

A) 66

B) 84

C) 64

D) 80

E) 76

Question 5: If 50% of the number of people who like only cricket are men and two-third of the number of people who like only Rugby are also men, then what is the sum of number of women who like only cricket and only rugby.

A) 66

B) 44

C) 22

D) 50

E) None of these

ANSWER KEYS and SOLUTIONS:

Solution 1: C)

Let number of people who like only cricket be ‘2x’

So, number of people who like exactly two types of sports = 2x

Number of people who like only Rugby = 0.75 × 2x = 1.5x

Number of people who like only Football = 2x/0.80 = 2.5x

Number of people who like all 3 sports = 150/5 = 30

Number of people who didn’t like any of the given three sports = 30/3 = 10

Let us represent the Venn diagram as follows:

So, (OC OF OR) 2(D E F) 3(G) = 530

Or, 6x 2 × 2x 3 × 30 = 530

Or, 10x = 440

Or, x = 44

Number of people who like only cricket = 2 × 44 = 88

Number of people who like only rugby = 1.5 × 44 = 66

Number of people who like only football = 2.5 × 44 = 110

ATQ;

D E = 150 – 88 – 30 = 32………………………(1)

And, E F = 200 – 110 – 30 = 60………………..(2)

And, D F = 180 – 30 – 66 = 84…………………(3)

Solving equation (1), (2) and (3), we get

D = 28, E = 4 and F = 56

So, number of people who like both cricket and rugby but not football = D = 28

Number of people who like both cricket and football not rugby = E = 4

Number of people who like both rugby and football but not cricket = F = 56

P = 88 + 4 + 110 + 28 + 30 + 56 + 66 + 10 = 392

Hence, option c.

Solution 2: D)

Desired number of people = 56 + 30 = 86

Hence, option d.

Solution 3: B)

Number of people who like both Cricket and Football = 30 + 4 = 34

Number of People who like both Rugby and Football but not Cricket = 56

Required difference = 56 – 34 = 22

Hence, option b.

Solution 4: E)

Number of people who liked neither Cricket nor Football = Number of people who like only rugby + number of people who doesn’t like any of the three given sports = 66 + 10 = 76

Hence, option e.

Solution 5: A)

Number of women who like only Cricket = 88/2 = 44

Number of Women who like only Rugby = 66/3 = 22

Required sum = 44 + 22 = 66

Hence, option a.

Tips to Master Caselets DI for RBI Grade B Exam

Now that you have seen some important practice questions, here are a few tips that you can practically implement while solving Caselets DI questions to masterthem:

1. Read the Caselet Carefully: Always begin by reading the caselet carefully. Detect necessary information like totals, averages, ratios, and percentages that are relevant to the question.
2. Break the Problem into Smaller Parts: Break the caselet into smaller sections or points. This will help you understand the problem better and allow you to focus on one part at a time.
3. Use Shortcuts for Calculations: Practice mathematical shortcuts. These shortcuts will help you solve problems quickly. Plus, techniques like quick multiplication, approximation, and division can save a lot of time.
4. Draw Tables or Diagrams: Draw tables or diagrams to organize the information, in case the data is complicated. Visualizing the data. The visualization process will make it easier to interpret and solve.
5. Stay Calm and Manage Your Time: Caselets DI questions can be tough and time-consuming. So, don’t rush. Stay calm and manage your time effectively to solve these questions within the time limit.

Takeaway

Mastering Caselets DI questions for the RBI Grade B exam requires practice and strategy. You can master this topic by mastering the art of understanding the format of questions, breaking the problem into smaller parts, and using shortcuts. Regular practice will further improve your performance. Make sure to practice regularly and time yourself to improve your solving speed. Don’t forget to take our FREE RBI Grade B Phase 1 Mock Test to measure your preparedness and improve your self-confidence!

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