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Wipro NLTH Reasoning — practice by topic

Browse 460 questions across 32 Reasoning topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Reasoning topics

Coding Decoding (123)Distance and Direction (117)Number Series (115)Blood Relations (113)Analogy (111)Analogies (110)Venn Diagrams (109)Number Series, Coding and Decoding and Odd Man Out (106)Direction Sense (97)Calendar (75)Series (72)Series Coding Relations (70)Classification (69)Syllogisms (68)Dice And Cubes (67)Mirror And Water Images (67)Odd One Out (67)Reasoning & Aptitude (67)Coding and Decoding (66)Floor Puzzle (66)Inequalities (66)Logical Reasoning (66)Seating Arrangements (66)Sets and Venn Diagrams (66)Data Interpretation (27)Number Series Reasoning (23)Syllogism (21)Alphanumeric Series (8)Letter Series (2)Indian Prime Ministers (1)Number Analogy (1)Number Properties (1)

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Find the next number: 2, 6, 12, 20, 30, ?Read the answer and worked solution →Find the next number: 1, 4, 9, 16, 25, ?Read the answer and worked solution →Find the next: 3, 7, 15, 31, 63, ?Read the answer and worked solution →Find the next: 1, 1, 2, 3, 5, 8, ?Read the answer and worked solution →

Worked practice questions

Find the next number: 2, 6, 12, 20, 30, ?

  1. 40
  2. 36
  3. 42
  4. 44
Show answer and solution

Correct answer: C. 42

**Differences:** 4, 6, 8, 10 (increasing by 2). Next difference = 12. So 30 + 12 = 42. Equivalent: n(n+1) for n=1,2,3,... giving 2, 6, 12, 20, 30, 42.

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Find the next number: 1, 4, 9, 16, 25, ?

  1. 49
  2. 36
  3. 32
  4. 30
Show answer and solution

Correct answer: B. 36

Series of perfect squares: 1², 2², 3², 4², 5². Next = 6² = 36.

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Find the next: 3, 7, 15, 31, 63, ?

  1. 125
  2. 99
  3. 127
  4. 95
Show answer and solution

Correct answer: C. 127

Each term is 2 × previous + 1: 3 → 7 (2×3+1), 7 → 15 (2×7+1), 15 → 31, 31 → 63, 63 → 127. Or 2ⁿ⁺¹ - 1.

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