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Free Content3 MCQs
Coding-Decoding is a reasoning topic where letters or words are replaced by codes using a fixed pattern. Think of it as a secret language with a rule — once you find the rule, you crack the code. It appears in almost every SSC, Bank, and Railway exam with 2–4 questions.
Alphabet positions to memorize:
For reverse alphabet: position of reverse = 27 − original position. So A(1) ↔ Z(26), B(2) ↔ Y(25).
Letter Position
A=1, B=2, C=3 ... Z=26Reverse Pair
Reverse position = 27 − position (A↔Z, B↔Y...)| Letter | Position (A=1) | Reverse Position |
|---|---|---|
| A | 1 | 26 (Z) |
| E | 5 | 22 (V) |
| M | 13 | 14 (N) |
| Z | 26 | 1 (A) |
Q: If MANGO is coded as NBOHP, how is APPLE coded?
If CAT = 48, DOG = 51, then RAT = ?
1If BOOK = 43, COOK = ?
2PENCIL is coded as QFODM. ERASER = ?
3Opposite of M in alphabet?
A=1, B=2, C=3 ... Z=26Reverse position = 27 − position (A↔Z, B↔Y...)