Coding & Decoding

Letter, number, and symbol-based encoding patterns.

What's covered

This topic carries 75 questions in our bank, drawn from the SSC CGL syllabus and previous-year papers. Every question has a worked-out explanation.

Q1 • SSC CGL 2024

In a certain code language, 'A ? B' means 'A is the mother of B', 'A ! B' means 'A is the wife of B', 'A & B' means 'A is the brother of B' and 'A x B' means 'A is the father of B'. Which of the following means that Z is the wife's father's mother of L?
Q2 • SSC CGL 2024

In a certain code language, 'VAT' is coded as '43' and 'AWW' is coded as '47'. How will 'ZHU' be coded in that language?
Q3 • SSC CGL 2022

If '@' means 'addition', '%' means 'multiplication', ' $' means 'division' and '#' means 'subtraction', then find the value of the following expression. 29 @ 128$ 16 % 7 # 22

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