Study Analytics
This dashboard presents an analysis of Coding-Decoding questions asked in Railway exams (NTPC, Group D, ALP, RPF). The chart below illustrates which categories (General Knowledge, Numbers, or Letters) were asked most frequently between 2020 and 2026. This will help you understand which topics to focus on more for exam preparation.
Letter Coding (Letters)
Based on letter shifting and alphabet positional values.
0
Number Coding (Numbers)
Based on mathematical operations on positional values.
0
Mixed/Substitution Coding (Mixed)
Based on direct substitution or artificial language.
0
Classification of Questions
Interactive Practice Mode
This section is for testing your knowledge. Solve the questions one by one. Choose your answer by clicking on any option and get the correct answer and its detailed solution immediately.
Question text goes here?
💡 Solution:
Practice Completed!
You answered X out of 20 questions correctly.
Complete Question Bank
Here is the list of all 20 questions. This section is designed for quick revision. You can click on the "Show/Hide Solution" button to see the answer and solution for any question.