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The problems based on data sufficiency reasoning consist of a query followed by certain statements that provide clues to answer the question, as the title implies. The candidates are not required to know the solution to the question. Candidates must simply determine whether the presented statement(s) are sufficient to answer the question and then select an appropriate response from the options provided. In many government examinations, questions from this part are frequently asked.
What is of Data Sufficiency?
Data sufficiency is the process of determining if a particular collection of data is sufficient to answer a question. Data Sufficiency questions are meant to assess a candidate’s ability to connect disparate pieces of information to arrive at a conclusion. Furthermore, the data sufficiency has a broader set of attributes to evaluate the applicant. On the one side, it may contain problems relating to any aspect of reasoning or numeric aptitude, and on the other, it can be used to assess a candidate’s analytical abilities.
Data Sufficiency Types
Blood Relation
In this type of data sufficiency question, applicants must determine the statement(s) in which data is sufficient to find the relation or correct answer between two people.
Order and Ranking
In this form of data sufficiency, applicants will be given data about people’s order or ranking, and they must find a statement(s) in which the data is adequate to find the correct answer.
Direction and Distance
Candidates must determine the statement(s) in which the data is sufficient to find the direction or distance between the points based on data on the direction of persons or points, the distance travelled by a person, or the distance between the locations.
Coding Decoding
Words or letters will be coded in this form of data sufficiency, and candidates will need to locate the statement(s) in which data is sufficient to determine the code.
Seating Arrangement
In this form of data sufficiency, applicants will be given data on people’s arrangements, and they must find the statement(s) in which the data is sufficient to determine the correct answer. Linear and circular seating arrangements are the two forms of seating arrangements. People will be seated in one or many rows in a Linear Arrangement. People will be seated or placed around a circular table in a Circular Arrangement.
Floor Puzzle
Candidates must determine the statement(s) in which data is sufficient to obtain the correct answer in this form of data sufficiency. Data about persons living on different floors of the same or other buildings will be given.
Scheduling
In this form of data sufficiency, applicants will be given data based on months, years, or dates, and they must assess whether the data presented in the assertions is sufficient.
Data Sufficiency Examples
1: In a T20 international match, six batsmen scored varying numbers of runs: Raina, Yuvraj, Kohli, Dhoni, Rahane, and Dhawan. How many batsmen have surpassed Dhoni in terms of runs scored?
(I) Rahane has 7 fewer runs than Yuvraj and 10 more than Raina.
(II) Kohli has scored 56 runs, eight fewer than Dhoni.
(III) Raina has a score of 34, one less than Dhawan.
Solution: If we examine the statements supplied, we may deduce that
(a) Raina has scored 34 runs, one less than Dhawan, giving Dhawan a total of 35.
(b) Kohli has scored 56 runs, which is 8 runs less than Dhoni, making Dhoni’s score 64.
(c) Rahane scored 7 runs less than Yuvraj and 10 runs more than Raina, resulting in a total of 10+34 = 44 for Rahane and 44+7 = 51 for Yuvraj.
As can be seen, no one scored higher than Dhoni, and all of the statements were necessary to obtain the final answer.
2: Determine which direction City A is facing in relation to City E if they are in a straight line and the distance between A and C is equal to the distance between F and E.
(I) A is located to the north of F, which is located to the west of C.
(II) A is located to the north of C.
(III) E is located to the north of F.
Solution: By drawing all of the directions stated in the statements, we can readily conclude that only statements I and III are required to obtain the final solution.
Between Aptitude and Reasoning
Aptitude | Reasoning |
Ability is aptitude. | Reasoning is an evaluative process. |
Aptitude refers to a set of skills such as deep thinking, logical reasoning, mastering technical subjects, teaching, and training others. | Reasoning is an operation performed in relation to a continuing debate, a topic that is being written and/or prepared, and that explains events, processes, procedures, mechanisms, and so on. |
For example, If someone has a natural aptitude for arithmetic, they can more simply reason through the processes. | This is an example of reasoning: thinking through a problem to try to come up with a reasonable solution. |
Conclusion
The creation or evaluation of statements in relation to their supporting arguments and evidence is known as reasoning. Because reasoning abilities affect how people interpret, assess, and accept facts and arguments, it has a significant impact on one’s ability to learn from new information and experiences.
Logic thinking, in addition to other cognitive abilities, is a vital skill that you use in a variety of situations.
