Understanding the Coding Pattern

This question asks us to decode a word based on a specific pattern observed in two given examples. The examples show how 'DISK' is coded as 'SIKD' and 'MINE' is coded as 'NIEM'. We need to find the code for 'BOLD' using the same rule.

Analyzing the Given Examples

Let's look closely at the transformation from the original word to the coded word in the given examples.

Example 1: DISK → SIKD

Original word: DISK

Let's assign positions to each letter:

Coded word: SIKD

Let's see the positions of the letters from the original word in the coded word:

• S (originally at position 3) is now at position 1.
• I (originally at position 2) is still at position 2.
• K (originally at position 4) is now at position 3.
• D (originally at position 1) is now at position 4.

So, the letters from original positions 1, 2, 3, 4 are moved to new positions 4, 2, 1, 3. Or, the letter from original position 3 goes to the 1st place, position 2 stays at 2nd place, position 4 goes to 3rd place, and position 1 goes to 4th place.

The pattern of position mapping is: Original positions $(1, 2, 3, 4)$ map to New positions $(3, 2, 4, 1)$.

Let's verify this with the second example.

Example 2: MINE → NIEM

Original word: MINE

Coded word: NIEM

Applying the pattern (Original positions $1, 2, 3, 4 \rightarrow$ New positions $3, 2, 4, 1$):

• Letter at original position 3 (N) goes to new position 1 → N
• Letter at original position 2 (I) goes to new position 2 → I
• Letter at original position 4 (E) goes to new position 3 → E
• Letter at original position 1 (M) goes to new position 4 → M

Combining these, we get NIEM. This matches the given coded word. The pattern is confirmed.

Applying the Pattern to BOLD

Now let's apply the same pattern (Original positions $1, 2, 3, 4 \rightarrow$ New positions $3, 2, 4, 1$) to the word 'BOLD'.

Original word: BOLD

Applying the pattern:

• Letter at original position 3 (L) goes to new position 1 → L
• Letter at original position 2 (O) goes to new position 2 → O
• Letter at original position 4 (D) goes to new position 3 → D
• Letter at original position 1 (B) goes to new position 4 → B

Combining these letters in the new order (L, O, D, B), the coded word is 'LODB'.

Comparing with Options

Let's check the options provided:

• Option 1: BLOD
• Option 2: DOLB
• Option 3: BDOL
• Option 4: LODB

Our calculated coded word 'LODB' matches Option 4.

Revision Table: Coding Decoding Logic

Additional Information: Types of Coding Decoding

Coding and decoding questions test your ability to understand and decipher patterns or rules applied to words, letters, or numbers. Common types include:

• Letter Shifting: Letters are shifted a fixed number of places forward or backward in the alphabet (e.g., A becomes C, B becomes D - shifting by +2).
• Position Change/Rearrangement: Letters within a word are rearranged according to a specific pattern, like the example above where positions are swapped.
• Letter Substitution: Each letter is replaced by another specific letter or symbol.
• Direct Coding: A word is directly assigned a code (word or number), and another word using some of the same letters might follow a similar direct mapping.
• Mixed Coding: A combination of letter and number codes, sometimes involving simple arithmetic operations.

Solving these questions requires careful observation of the given examples to identify the underlying rule or pattern before applying it to the new word or code.