SSC CGL General Intelligence and Reasoning Topic Punched-Hole and Pattern Folding — Detailed Notes

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Punched-Hole and Pattern Folding is a visual reasoning topic frequently asked in the SSC CGL Tier-I General Intelligence & Reasoning section. It tests your ability to mentally track how holes punched in a folded paper appear when the paper is unfolded, and how patterns align when a patterned paper is folded. This topic typically contributes 2-4 questions and can be solved quickly with practice, making it a high-scoring area. The chapter begins with the fundamentals of paper folding and punching, then covers types of folds (half, quarter, diagonal), rules of symmetry and reflection for unfolding, and a step-by-step method to solve punched-hole problems. It also includes pattern folding, special cases like multiple punches and overlapping holes, common exam traps, and speed techniques. To master this topic, start by understanding the basic fold lines and reflection rules, then practice with simple one-fold problems before moving to multiple folds and diagonal folds. Always draw the unfolded paper and mark holes systematically. With consistent practice, you can solve these questions in under a minute. This chapter provides clear explanations, solved examples, and practice questions to build your confidence. Remember, the key is to visualize the paper as a grid and apply symmetry accurately. No official statistics or cut-offs are provided here; for exam-specific details, always verify against the latest SSC notification.

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