Verbal Reasoning by R S Aggarwal – Series with Secret Concept.

Verbal Reasoning by R S Aggarwal – Series with Secret Concept.

 Verbal Reasoning – Number & Alphabet Series (Secret Concepts) – R.S. Aggarwal

Series-based questions are commonly asked in reasoning exams. These involve finding hidden patterns in numbers or alphabets. Let’s break down the secret concepts behind these series and how to solve them quickly.

 Types of Series in Verbal Reasoning

 Number Series (Mathematical Pattern)

In this type, numbers follow a specific addition, subtraction, multiplication, division, or square/cube pattern.

Example 1: Find the missing number:
2, 6, 12, 20, ?, 42

Solution:
Pattern: n² + n

• 1² + 1 = 2
• 2² + 2 = 6
• 3² + 3 = 12
• 4² + 4 = 20
• 5² + 5 = 30  (Answer)
• 6² + 6 = 42

Secret Concept: Use n², n³, prime numbers, alternate patterns, or arithmetic sequences.

 Alphabet Series (Letter Shifting)

In this type, letters follow a forward (+) or backward (-) shift.

Example 2: Find the missing letter:
A, C, F, J, O, ?

Solution:
Pattern: +2, +3, +4, +5, …

• A → C (+2)
• C → F (+3)
• F → J (+4)
• J → O (+5)
• O → U (+6) (Answer)

Secret Concept: Use positional values (A=1, B=2…), letter jumps, or alternating sequences.

 Mixed Number & Letter Series

Example 3: Find the missing term:
A1, C4, F9, J16, O25, ?

Solution:

• Letters: A, C, F, J, O, ? → Pattern: +2, +3, +4, +5, +6
• Numbers: 1, 4, 9, 16, 25, ? → Pattern: Square numbers (1², 2², 3², …)
• Next letter: O + 6 = U, Next number: 6² = 36
  Answer: U36

Secret Concept: Combine letter shifts and mathematical series together.

 Secret Tricks to Crack Series Questions Quickly

Identify the pattern first (Arithmetic, Geometric, Square/Cube, Prime Numbers)
Check letter jumps (Forward/Backward shifting)
Look for alternating sequences
Convert letters into numbers (A=1, B=2, etc.) for hidden patterns
Write down differences between numbers or letters

Would you like some practice questions with solutions to strengthen your skills?

Verbal Reasoning by R S Aggarwal – Series with Secret Concept.