Lesson 3.2: Coding-Decoding (Latest Pattern)

Description:
Coding-Decoding tests your ability to understand hidden logic between words or numbers.

Types of Questions:

• Letter Coding:

  • EXAMPLE → FYBNQMF (+1 added to each letter).

• Number Coding:

  • CAT → 3 1 20 (Position values).

• Substitution Coding:

  • “Blue is Red, Red is Green, Green is Blue” type questions.

Latest Pattern (RRB Trend):

• Sentence-based coding (e.g., “apple mango orange” coded as “xy z pq”).

Example Questions:

1. If “BALL” is coded as “CBDM”, what is “WORD”?

   • Answer: XPSF (Each letter +1).

2. If “CAT” is coded as 24, “DOG” as 26, find code for “BAT”.

   • Answer: 23 (Sum of positions).

Tips:

• Focus on +/- shifting, reverse order, and ASCII logic.

• Practice at least 100 mixed pattern questions.