Classification

Q: Find the odd number out:

Correct Answer: Option B (1728). 1728 is the cube of an even number (12^3), whereas all others are cubes of odd numbers (11^3, 13^3, 15^3).

Q: Find the odd number out:

Correct Answer: Option A (82). All other numbers follow the pattern n^2 - 1 (6^2-1=35, 7^2-1=48, 8^2-1=63). 82 is 9^2 + 1.

Q: Find the odd number out:

Correct Answer: Option A (25). 25 is a perfect square (and composite), whereas all other options are prime numbers.

Q: Find the odd number out:

Correct Answer: Option A (180). All other numbers follow the pattern n*(n+1) [10*11=110, 11*12=132, 12*13=156]. 180 does not fit this pattern.

Q: Find the odd number out:

Correct Answer: Option C (9). 9 is a composite number (a perfect square), whereas all other options are prime numbers.

80 Questions

Practice Classification questions with answers and step-by-step solutions. These problems are curated from recent campus placement test papers (TCS, Infosys, Wipro, Cognizant, Accenture) and competitive government exams (SSC CGL, Bank PO, RRB NTPC, UPSC).

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Classification: Reference Context & Data Shared for questions below

Reference Caselet

Reasoning Ability: Classification (80 Questions)

In each of the following questions, four options are given, out of which three are alike in a certain way and one is different. Select the odd one out.

Q56

Find the odd number out:

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Q57

Find the odd number out:

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Q58

Find the odd number out:

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Q59

Find the odd number out:

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Q60

Find the odd number out:

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Classification

Find the odd number out:

Community Discussion & Shortcut Formulas

Find the odd number out:

Community Discussion & Shortcut Formulas

Find the odd number out:

Community Discussion & Shortcut Formulas

Find the odd number out:

Community Discussion & Shortcut Formulas

Find the odd number out:

Community Discussion & Shortcut Formulas