Letter Series Analogy Explained

The question presents a letter series analogy: PK: QJ :: AZ: ?. We need to determine the relationship between the first pair (PK and QJ) and apply it to the second pair (AZ) to find the missing term.

Analyzing the PK to QJ Relationship

Let's examine the relationship by looking at the positions of the letters in the alphabet:

• P is the 16th letter and K is the 11th letter.
• Q is the 17th letter and J is the 10th letter.

Comparing the positions:

• The first letter moves from P (16) to Q (17), which is a step of +1 ($16 + 1 = 17$).
• The second letter moves from K (11) to J (10), which is a step of -1 ($11 - 1 = 10$).

The pattern is: Add 1 to the position of the first letter and subtract 1 from the position of the second letter.

Applying the Pattern to AZ

Now, let's apply the same '+1, -1' pattern to the second pair, AZ:

• A is the 1st letter and Z is the 26th letter.

Applying the pattern:

• First letter: A (1) + 1 = 2nd letter, which is B ($1 + 1 = 2$).
• Second letter: Z (26) - 1 = 25th letter, which is Y ($26 - 1 = 25$).

Therefore, the missing term is BY.

Final Answer Determination

The relationship identified ('+1' for the first letter, '-1' for the second) when applied to 'AZ' results in 'BY'. This matches Option 2.