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CAT 2025 » CAT Study Material » Data Interpretation and Logical Reasoning » Reasoning Categories
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Reasoning Categories

Logic-based reasoning is an important skill for anyone who wants to get ahead in their career. It's a must-have for all jobs, from entry-level to corporate, and it helps define your leadership skills.

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The reasoning is the ability to make decisions or solve problems in a logical way by applying logic to new or old information. Reasoning lets you compare the pros and cons of two or more options so you can choose the one that is best for you or has the most benefits. It also helps you solve problems, deal with uncertainty, check claims, and carefully evaluate situations to make sure the choice you make is the best one for you.

Reasoning can take many different forms, from the way we make decisions every day to the complex algorithms that run artificial intelligence. Formal reasoning can be found in well-known fields like math, logic, artificial intelligence, and philosophy. But there are seven basic types of reasoning that can be used in any situation. Knowing the different kinds of reasoning can help you evaluate and move forward in the process of making decisions.

7 types of reasoning 

  1. Deductive reasoning 
  2. Inductive reasoning 
  3. Analogical reasoning 
  4. Abductive reasoning
  5. Cause-and-effect reasoning 
  6. Critical thinking 
  7. Decompositional reasoning

Deductive reasoning 

Deductive reasoning is a way to prove a theory or hypothesis by using formal logic and observations. In deductive reasoning, you start with an assumption and then use observations or logical thoughts to prove or disprove the assumption. You can use deductive reasoning to test an induction or apply a general rule to a specific situation. Most of the time, the results of deductive reasoning are logically certain. For example, a company’s marketing department looks at data and confirms that its biggest group of customers is young parents. Based on this information, they decide to spend more of the marketing budget on social media platforms that target that group.

Inductive reasoning 

Observations are used to prove theories and assumptions in inductive reasoning. In some ways, it’s the opposite of deductive reasoning, because it’s based on figuring out a general rule from a specific case or cases. Because inductive reasoning uses conclusions from observations to make generalizations, its results are not always sure. You can use inductive reasoning to extrapolate, make predictions, and make arguments from parts to the whole.

Analogical reasoning 

Analogical reasoning is a mode of thought that identifies similarities between two or more items and then uses those similarities to identify other features they share. It is based on the brain’s capacity to recognize patterns and form connections. Once the brain sees a pattern, it can correlate the pattern with specific entities, leading to similar thinking. By identifying similarities between disparate concepts, analogous thinking can assist increase one’s comprehension.

Abductive reasoning 

Abductive reasoning is a form of reasoning that employs an observation or group of observations to reach a logical conclusion. Abductive reasoning is similar to inductive reasoning, but it permits making educated guesses to get the simplest conclusions. Abduction has applications in problem-solving and decision-making, particularly when coping with uncertainty. Abductive reasoning is particularly beneficial when describing an observation or phenomena for which the observer has limited or no prior knowledge. The conclusion of abductive reasoning may not always be certain and may require additional verification.

Cause – and – effect reasoning 

In cause-and-effect reasoning, you demonstrate the connection between two events. This reasoning is used to describe what may occur if a certain action occurs or why certain events occur when certain circumstances are met. In situations when people rely on personal experience and a desire to improve, this sort of reasoning is frequently used to make decisions. Businesses and professions also utilize prediction and forecast modeling. This type of reasoning can help people believe your ideas, especially if you are generally accurate.

Critical thinking 

Critical thinking includes prolonged rational consideration of a particular subject in order to reach a definitive conclusion. It is useful in domains including computing, engineering, social sciences, and logic. Critical thinking is essential for problem-solving, especially when debugging technical challenges. It is used to evaluate the legitimacy of works of art, literature, films, and other artistic expressions. Critical thinking is also crucial in mental and emotional concerns, gray areas, and other fields that deal with poorly understood topics.

Decompositional reasoning 

Decompositional reasoning is the act of analyzing the function of each component and how it contributes to the operation of the whole. Decompositional reasoning enables an observer to derive conclusive conclusions about the total by evaluating each component separately. This methodology is utilized in numerous disciplines, including science, engineering, marketing, product creation, game development, and software development. In dividing a project into its constituent parts, project management employs decompositional thinking. A manager allocates each component to an individual who is responsible for its completion and communication regarding its incorporation into the project. This division assures the success of each component and contributes to the overall operation.

Conclusion 

The ability to think logically and make conclusions is known as reasoning.. There are seven basic types of reasoning that can be used in any situation. Abductive reasoning is a form of reasoning that employs an observation or group of observations to reach a logical conclusion. Abduction has applications in problem-solving and decision-making, particularly when coping with uncertainty. The conclusion of abductive reasoning may not always be certain and may require additional verification.

faq

Frequently asked questions

Get answers to the most common queries related to the CAT Examination Preparation.

Write different types of logical reasoning?

Ans.  At the moment, logical reasoning can be divided into at least three dis...Read full

A tailor needed to cut several shirt parts from a roll of fabric. Each roll of equal length is divided into ten pieces. He makes forty-five cuts every minute. How many rolls can be cut in twenty-four minutes?

Ans: The number of cuts required to cut a roll into ten pieces is nine....Read full

A girl counted the fingers on her left hand in the following manner: she began by calling the thumb 1, then the index finger 2, middle finger 3, ring finger 4, little finger 5, and then reversed the order, calling the ring finger 6, middle 7, and so on. She numbered all the way up to 1994. On which finger did she come to an end with her counting?

Ans. Solution – while counting the numbers from thumb ...Read full

When Rahul was born, his father was 32 years older than his brother, and his mother was 25 years older than his sister. How old was Rahul's sister when he was born, given that his brother is 6 years older than him and his mother is 3 years younger than his father?

Ans. When Rahul was born, his father was 32 years older than his brother, and ...Read full

A farmer built a fence around his square plot. He used 27 fence poles on each side of the square. How many poles did need altogether?

Ans.  as we can see that each pole at the corner of the plot is c ...Read full

Ans.  At the moment, logical reasoning can be divided into at least three distinct types of reasoning. These are referred to as deductive reasoning, inductive reasoning, and abductive reasoning, and they are founded on the principles of deduction, induction, and abduction, respectively. Deductive reasoning is the most common type of reasoning.

Ans: The number of cuts required to cut a roll into ten pieces is nine.

As a result, the needed number of rolls is equal to (45*24)/9 = 120.

Ans. Solution – while counting the numbers from thumb

1,9,17,25……..i.e, numbers of the form (8n+1)

AS, 1994 = 249 x 8 + 2, so 1992 will count on the thumb and 1994 to the index finger.

Ans. When Rahul was born, his father was 32 years older than his brother, and his mother was 25 years older than his sister. How old was Rahul’s sister when he was born, given that his brother is 6 years older than him and his mother is 3 years younger than his father?

Ans.  as we can see that each pole at the corner of the plot is c

common to its two sides.

Therefore, total numbers of poles needed = 27*4-4=104.

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