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Reason Statements Assumptions — Free Reasoning Tutorial

Learn Reason Statements Assumptions in Reasoning with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

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TL;DR: Learn Reason Statements Assumptions in Reasoning with a free, beginner-friendly tutorial, examples and practice for Indian students on Syllab.in.

Written & reviewed by the Syllab.in Academic Team (CBSE/NCERT subject experts) · Updated Jul 12, 2026

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Reason Statements Assumptions in Reasoning

Statements and assumptions questions test your ability to distinguish between facts (explicitly stated) and implied beliefs (assumptions). An assumption is an unstated belief that the speaker relies upon for their conclusion to be true. A logical deduction is a conclusion that must be true if the statement is true. Key difference: deductions are certain; assumptions are implicit beliefs that may or may not be true.

To identify assumptions: (1) Read the statement carefully, (2) Identify the conclusion the speaker is making, (3) Ask "What must be true for this conclusion to follow?" (4) If the answer is not stated, it's an assumption. For example, "Smoking causes cancer" assumes that the listener values health. A valid assumption is necessary for the argument to hold; an invalid assumption is either stated in the passage or irrelevant.

Logical deduction problems require you to apply given rules to reach certain conclusions. Unlike assumptions, deductions are testable: if premises are true, deduction must be true. Use syllogistic logic, if-then chains, and process of elimination. Never mix assumptions with deductions; assumptions are about unstated beliefs, deductions are about what must logically follow.

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