UI 12 is related to YK -2 in a certain way. In the same way, OL 9 is related to SN -5. To which of the following is PQ 15 related, following the same logic?

The correct option is TS 1.

To solve this logical reasoning question, let's break down the pattern relating each given pair of terms step-by-step.

Step 1: Analyze the positional values of the alphabets in the English alphabet series (A = 1, B = 2, ..., Z = 26).

Let's examine the first pair: UI 12 is related to YK -2.

For the first letter:
U has a positional value of 21.
Y has a positional value of 25.
Logic: 21 + 4 = 25 (U → Y)

For the second letter:
I has a positional value of 9.
K has a positional value of 11.
Logic: 9 + 2 = 11 (I → K)

For the number:
The initial number is 12 and the final number is -2.
Notice the mathematical relationship using the positional values of U (21) and I (9):
Difference between letter positions: 21 - 9 = 12.
Then, 12 - 14 = -2.

Step 2: Verify the pattern with the second pair: OL 9 is related to SN -5.

For the first letter:
O has a positional value of 15.
S has a positional value of 19.
Logic: 15 + 4 = 19 (O → S)

For the second letter:
L has a positional value of 12.
N has a positional value of 14.
Logic: 12 + 2 = 14 (L → N)

For the number:
The initial number is 9 and the final number is -5.
Notice the mathematical relationship using the positional values of O (15) and L (12):
Difference between letter positions: 15 - 12 = 3.
Wait, looking at the number transformation:
In pair 1: Number 12 → -2 (Subtract 14)
In pair 2: Number 9 → -5 (Subtract 14)
Let's check the subtraction logic: 12 - 14 = -2, and 9 - 14 = -5.

Step 3: Apply the identified logic to PQ 15.

For the first letter:
P has a positional value of 16.
Add 4 to the position: 16 + 4 = 20.
The 20th letter in the alphabet is T.

For the second letter:
Q has a positional value of 17.
Add 2 to the position: 17 + 2 = 19.
The 19th letter in the alphabet is S.

For the number:
The given number is 15.
Subtract 14 from the given number:
15 - 14 = 1.

Combining all three components, PQ 15 is related to TS 1.