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TCS NQT GuideTCS NQT Reasoning AbilityLetter Series and Alphabetical Patterns

Letter Series and Alphabetical Patterns

Learn core concepts, essential formulas, and attempt practice questions designed on the latest TCS NQT testing patterns.

Key Concepts & Formulas

  • 1Assign numeric values to letters: A=1, B=2 ... Z=26.
  • 2Opposite letters matching pairs: A-Z, B-Y, C-X (Sum = 27).

TCS NQT Style Practice Questions

Practice Question 1

What comes next: B, D, G, K, ?

A) P
B) O
C) N
D) Q

Correct Answer: A) P

Step-by-step Solution: Numeric values: B=2, D=4 (+2), G=7 (+3), K=11 (+4). Next is +5 => 11 + 5 = 16 => P.

Practice Question 2

Identify the missing pair: AZ, BY, CX, ?

A) DW
B) EV
C) DU
D) DX

Correct Answer: A) DW

Step-by-step Solution: The first letters increase: A->B->C->D. The second letters decrease: Z->Y->X->W. Thus, DW.

Study Pro-Tip

Jot down the A-Z numeric index mapping on your rough sheet at the start of the section.

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