Understanding the Coding Pattern: TRIPPLE to SQHOOKD

This question involves decoding a pattern used to transform one word into another. We are given that the word TRIPPLE is coded as SQHOOKD. Our task is to identify the rule applied and then use the same rule to find the code for the word EXOTIC.

Analyzing the Transformation

Let's look at the relationship between each letter in the original word TRIPPLE and its corresponding letter in the coded word SQHOOKD. We can write them one below the other:

T R I P P L E
| | | | | | |
S Q H O O K D

Now, let's determine the positional change or transformation for each letter using the English alphabet sequence.

• T becomes S: S comes just before T. (T → S)
• R becomes Q: Q comes just before R. (R → Q)
• I becomes H: H comes just before I. (I → H)
• P becomes O: O comes just before P. (P → O)
• P becomes O: O comes just before P. (P → O)
• L becomes K: K comes just before L. (L → K)
• E becomes D: D comes just before E. (E → D)

It is clear that each letter in the word TRIPPLE is shifted one position backward in the English alphabet to get the corresponding letter in the code SQHOOKD. This is a consistent pattern applied to every letter. Mathematically, if a letter is at position $n$ in the alphabet, its code is the letter at position $n-1$.

Applying the Pattern to EXOTIC

Now we apply the same rule (shift one position backward) to each letter of the word EXOTIC to find its code.

• E: One letter before E is D.
• X: One letter before X is W.
• O: One letter before O is N.
• T: One letter before T is S.
• I: One letter before I is H.
• C: One letter before C is B.

Combining these letters, the code for EXOTIC is DWNSHB.

Verifying the Result

Let's check the resulting code DWNSHB against the given options to confirm our answer.

The coded word formed by applying the rule is DWNSHB.

Final Answer Derivation

Based on our analysis, the word EXOTIC is coded as DWNSHB using the same pattern as TRIPPLE to SQHOOKD (a backward shift of one position for each letter).

Revision Table: Coding Decoding

Additional Information: Types of Letter Coding

Letter coding is a common type of question in reasoning sections. Understanding different patterns helps in solving these questions quickly. Some common types include:

• Shift Coding: Letters are shifted forward or backward by a fixed number of positions (e.g., A → C is a +2 shift).
• Reverse Shift Coding: Similar to shift coding, but the shift might vary for different letters or follow a specific sequence.
• Opposite Letter Coding: Each letter is replaced by its opposite letter in the alphabet (A ↔ Z, B ↔ Y, etc.).
• Jumbling/Rearrangement: The letters of the word are rearranged according to a specific rule (e.g., reversing the word, swapping adjacent letters).
• Direct Letter Coding: Specific letters are assigned specific codes directly, usually given in a table or example word(s).

In this problem, the pattern was a simple shift coding where the shift was -1 for every letter.