If SF=13,DT=-16, then AB=

 

Correct option is A

Let's analyze the given pattern and find the logic behind the values assigned to the letter pairs.

Step 1: Assigning Alphabet Values

Each letter corresponds to its position in the English alphabet:

• S = 19, F = 6

• Given: SF = 13

• Possible pattern: 19−6=13

• D = 4, T = 20

• Given: DT = -16

• Possible pattern: 4−20= −16

Step 2: Apply the Pattern to AB

• A = 1, B = 2

• Using the same pattern: A−B=1−2= −1