Refer to the following letter, number, symbol series and answer the question that follows. (NOTE: All numbers are single digit numbers only) Counting to be done from
left to right only.

(Left) H 9 & 3 L ! 6 M $ 7 R @ 4 C % 2 F # 5 K * 8 P (Right)

How many such symbols are there, each of which is immediately preceded by a number and also immediately followed by another symbol?

The correct option is None.

Let's analyze the given series step-by-step from left to right to find how many symbols satisfy the specified condition.

The condition we are looking for is:
Number ⇒ Symbol ⇒ Symbol

Here is the given series:
H 9 & 3 L ! 6 M $ 7 R @ 4 C % 2 F # 5 K * 8 P

Let's list all the symbols in the series and check their preceding and succeeding elements:

1. The first symbol is &:
- Preceded by: 9 (a number)
- Followed by: 3 (a number)
- Since it is not followed by another symbol, it does not satisfy the condition.

2. The second symbol is !:
- Preceded by: L (a letter)
- Followed by: 6 (a number)
- It does not satisfy the condition.

3. The third symbol is $:
- Preceded by: M (a letter)
- Followed by: 7 (a number)
- It does not satisfy the condition.

4. The fourth symbol is @:
- Preceded by: R (a letter)
- Followed by: 4 (a number)
- It does not satisfy the condition.

5. The fifth symbol is %:
- Preceded by: C (a letter)
- Followed by: 2 (a number)
- It does not satisfy the condition.

6. The sixth symbol is #:
- Preceded by: F (a letter)
- Followed by: 5 (a number)
- It does not satisfy the condition.

7. The seventh symbol is *:
- Preceded by: K (a letter)
- Followed by: 8 (a number)
- It does not satisfy the condition.

Since none of the symbols in the series are immediately preceded by a number and also immediately followed by another symbol, there are no such symbols.

Therefore, the correct answer is None.