Chapter 5 of 10
Formula Sheet
Series — Formula Sheet
BITSAT · Logical Reasoning
Free Series formula sheet for BITSAT Logical Reasoning 2026 — all important formulas, equations, and constants for quick reference.
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Formula Sheet — Series
Important formulas and equations from Series for BITSAT Logical Reasoning.
Formulas — Series
Types of Series
Pattern Recognition Strategies
aₙ = a₁ + (n−1)daₙ = a₁ × rⁿ⁻¹Δ¹ = aₙ₊₁ − aₙ; Δ² = Δ¹ₙ₊₁ − Δ¹ₙAlphabetic and Alpha-Numeric Series — Key Rules
Position of letter L = ordinal value; Gap = L₂ − L₁ (mod 26)Finding the Wrong Term
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Frequently Asked Questions
What topics are covered in Series for BITSAT?
Series is an important chapter in BITSAT Logical Reasoning. It covers key concepts and formulas that are frequently tested in the exam. Key topics include: Classification of Series, Number Series – Patterns and Sub-Types, Alphabet Series – Patterns and Positional Logic, Alpha-Numeric and Mixed Series.
How important is Series for BITSAT?
Series is a frequently tested chapter in BITSAT Logical Reasoning. Questions from this chapter appear regularly in previous year papers.
How to prepare Series for BITSAT?
Start by understanding the core concepts, then solve practice questions. Focus on formulas and their applications. Use revision notes for quick review before the exam.
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Get the full Series chapter — for free.
Practice questions, revision notes, formula sheet and AI doubt-solver for BITSAT Logical Reasoning.