Coding-Decoding — Detailed Notes
⭐ Important points upar highlighted hain — pehle wo padho, phir detail me samjho, aakhir me practice karo.
Ye Detailed Note Premium hai
Coding-Decoding is a core reasoning topic in the Delhi Police Constable exam. It tests your ability to identify patterns in how words, letters, numbers, or symbols are transformed into codes and to apply the same rule to new inputs. The topic appears regularly in the reasoning section and carries good scoring potential because the rules, once recognised, are usually simple and consistent. This chapter builds your skill from the ground up. You will begin with the basic idea of coding and decoding and the terminology used in questions. You will then study letter coding, including shifting letters forward or backward and reversing letter order. Next, you will learn number coding, where letters are converted to numbers using positional values or arithmetic operations. The chapter then covers substitution and symbol coding, pattern-based coding using series and analogies, and conditional and mixed coding where more than one rule applies. You will also learn practical decoding techniques and strategies for choosing the fastest approach under exam time pressure. A section on common exam traps and mistakes will help you avoid careless errors. Finally, practice questions and previous year analysis give you exam-style exposure. To study effectively, learn the letter positions and opposite letter pairs thoroughly, practise each coding type separately, then attempt mixed sets with a timer. Always verify rules against every part of the question before finalising an answer. For exam pattern, marks distribution, and notification-specific details, check the latest official Delhi Police notification.
Please log in and get Premium to read this note. · इस note को पढ़ने के लिए login करके Premium subscription लो।