The question asks us to find the term that is related to 'GIM' in the same way that 'XTP' is related to 'CGK'. This is a type of analogy question often found in logical reasoning or verbal ability tests. We need to identify the relationship between the first pair ('CGK' and 'XTP') and then apply that same relationship to the third term ('GIM') to find the fourth term.

Analyzing the Relationship Between CGK and XTP

Let's look at the letters in 'CGK' and 'XTP' and their positions in the English alphabet. A=1, B=2, C=3, and so on, up to Z=26.

Now let's examine the relationship between the corresponding letters:

• C (3) and X (24): $3 + 24 = 27$
• G (7) and T (20): $7 + 20 = 27$
• K (11) and P (16): $11 + 16 = 27$

It appears that each letter in 'CGK' is replaced by the letter that is its "alphabetical opposite", meaning the sum of their positions is 27. This is a common pattern in letter-based analogies.

Applying the Relation to GIM

Now, let's apply the same "alphabetical opposite" rule to the letters in 'GIM'. We need to find the letter whose position, when added to the position of each letter in 'GIM', sums up to 27.

Following this logic, the letters G, I, and M correspond to T, R, and N respectively.

Therefore, 'GIM' is related to 'TRN'.

Comparing with Options

Let's check our derived term 'TRN' against the given options:

1. TSN
2. TPN
3. TQN
4. TRN

Our calculated term 'TRN' matches option 4.

Conclusion

The relationship between the first pair of terms (CGK and XTP) is that each letter in the first term is replaced by its alphabetical opposite to form the second term. Applying this same relationship to the third term (GIM) gives us TRN.

The final answer is $\boxed{TRN}$.

Revision Table: Letter Analogy Concepts

Additional Information: Solving Letter Series and Analogies

Letter series and analogy questions are common in competitive exams. They test your ability to identify patterns based on the English alphabet. Here are some tips for solving them:

• Write down the alphabet and its positions (1-26) if you are not familiar with them.
• Look for simple relationships first:
  • Is it a fixed step forward or backward?
  • Is it the alphabetical opposite?
  • Is there a pattern in skipping letters?
• Consider multiple patterns if a simple one isn't obvious. Sometimes patterns involve the sum of positions, differences, or repeating sequences.
• Break down longer terms letter by letter and analyze the relationship for each corresponding letter.
• Practice recognizing common patterns like the alphabetical opposite rule.
• Don't assume the pattern is simple; sometimes it can be complex, involving multiple steps or combining different rules.

Understanding letter positions and practicing various types of letter-based puzzles will help you solve these questions quickly and accurately.