Directions: Study the following alphanumeric sequence carefully and answer the question given below.

% R 4 D # 8 N 2 @ T 9 $ 6 K & H 5 * 1

How many such digits are there in the given sequence, each of which is immediately preceded by a letter and immediately followed by a symbol?

The correct option is Three.

Step-by-step explanation:

We are asked to find the number of digits in the given sequence that satisfy the following pattern:
[Letter] → [Digit] → [Symbol]

Let's write down the given sequence:
% R 4 D # 8 N 2 @ T 9 $ 6 K & H 5 * 1

Now, let's analyze each digit in the sequence to check if it fits the pattern:

1. Digit 4: Preceded by letter 'R', but followed by letter 'D'. (Does not satisfy)
2. Digit 8: Preceded by symbol '#'. (Does not satisfy)
3. Digit 2: Preceded by letter 'N' and immediately followed by symbol '@'. (Satisfies: N 2 @)
4. Digit 9: Preceded by letter 'T' and immediately followed by symbol '$'. (Satisfies: T 9 $)
5. Digit 6: Preceded by symbol '$'. (Does not satisfy)
6. Digit 5: Preceded by letter 'H' and immediately followed by symbol '*'. (Satisfies: H 5 *)
7. Digit 1: Preceded by symbol '*'. (Does not satisfy)

Thus, there are three such digits (2, 9, and 5) that are immediately preceded by a letter and immediately followed by a symbol.