Understanding the Letter Coding Puzzle

This question involves a letter coding pattern. We are given a sentence and a coded word, and we need to determine the coding rule applied to the example word and then use that rule to code a specific letter from the sentence.

Identifying the Target Letter

The sentence given is "I LOVE MY COUNTRY".

We are asked for the code of the last letter of the third word in this sentence.

• The first word is "I".
• The second word is "LOVE".
• The third word is "MY".

The third word is "MY". The last letter of the word "MY" is "Y".

So, we need to find the coded form of the letter "Y" based on the provided coding rule.

Analyzing the Coding Pattern: BE QUICK to ZC OSGAI

Let's examine how the word "BE QUICK" is coded as "ZC OSGAI". We can look at the position of each letter in the English alphabet (A=1, B=2, ..., Z=26).

From the table, we can observe a consistent pattern:

• Each letter in the original word "BE QUICK" is shifted 2 positions backward in the alphabet to get the coded letter.
• For letters at the beginning of the alphabet (like B and C), the shift wraps around from A back to Z. B (position 2) shifted back by 2 goes to position 0, which is Z. C (position 3) shifted back by 2 goes to position 1, which is A.

The coding rule is: Shift each letter 2 positions backward in the alphabet, wrapping around from A to Z if necessary.

Coding the Target Letter 'Y'

Now we apply this rule to the letter 'Y', which is the last letter of the third word "MY".

• The position of 'Y' in the alphabet is 25.
• Applying the rule, we shift backward by 2 positions: $25 - 2 = 23$.
• The letter at position 23 in the alphabet is 'W'.

Therefore, the coded form of the letter 'Y' is 'W'.

Comparing with Options

Let's look at the given options:

1. A
2. T
3. U
4. W

Our calculated coded letter for 'Y' is 'W', which matches option 4.

Revision Table: Key Concepts in Coding-Decoding

Additional Information: Types of Letter Coding

Letter coding puzzles can involve various patterns. Understanding these patterns helps in solving different types of questions:

• Alphabetical Shift: Letters are shifted a fixed number of positions forward or backward (as in this problem). The shift can be uniform for all letters or vary.
• Reverse Alphabetical Order: The position of a letter from the beginning (A=1) is related to its position from the end (Z=1). For example, A (1st) codes to Z (1st from end), B (2nd) codes to Y (2nd from end).
• Mixed Patterns: A combination of different rules might be applied, like shifting by a different number for odd/even positions, or reversing the word before applying a shift.
• Letter Interchange: Swapping letters within the word based on specific positions or pairs.

To solve these puzzles, it's crucial to carefully observe the relationship between the given word and its code, check for common patterns like shifting, and test hypotheses against all letters in the example.