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CAT 2015 and CAT 2016 were 180-minute tests consisting of 100 questions (34 from Quantitative Ability, 34 from Verbal Ability and Reading Comprehension, and 32 from Data Interpretation and Logical Reasoning. [8] CAT 2020 onwards, the exam duration has been reduced to two hours, with 40 minutes allotted per section. [9]
The Hardest Logic Puzzle Ever is a logic puzzle so called by American philosopher and logician George Boolos and published in The Harvard Review of Philosophy in 1996. [ 1 ] [ 2 ] Boolos' article includes multiple ways of solving the problem.
A syllogism (Ancient Greek: συλλογισμός, syllogismos, 'conclusion, inference') is a kind of logical argument that applies deductive reasoning to arrive at a conclusion based on two propositions that are asserted or assumed to be true.
As an example, for the A proposition "All cats are mammals", the converse "All mammals are cats" is obviously false. However, the weaker statement "Some mammals are cats" is true. Logicians define conversion per accidens to be the process of producing this weaker statement. Inference from a statement to its converse per accidens is generally valid.
Logical reasoning is a form of thinking that is concerned with arriving at a conclusion in a rigorous way. [1] This happens in the form of inferences by transforming the information present in a set of premises to reach a conclusion.
For example, CAT exams must usually meet content specifications; [3] a verbal exam may need to be composed of equal numbers of analogies, fill-in-the-blank and synonym item types. CATs typically have some form of item exposure constraints, [3] to prevent the most informative items from being
The Wason selection task (or four-card problem) is a logic puzzle devised by Peter Cathcart Wason in 1966. [ 1 ] [ 2 ] [ 3 ] It is one of the most famous tasks in the study of deductive reasoning . [ 4 ]
This is distributed in the conclusion (the last statement) because we are making a claim about a property of all mammals: that they are not cats. However, it is not distributed in the major premise (the first statement) where we are only talking about a property of some mammals: Only some mammals are dogs.