Refer to the following number and symbol series and answer the question that follows. Counting to be done from left to right only.
(Left) @ + 1 < 9 6 9 2% \ $ \ + 2 & $ 3 2 ^ 9 9 (Right)
How many such numbers are there that are immediately preceded by a symbol and immediately followed by another number?

Given:
(Left) @ + 1 < 9 6 9 2% \ $ \ + 2 & $ 3 2 ^ 9 9 (Right)
Logic: symbol | number | number

@ + 1 < 9 6 9 2% \ $ \ + 2 & $ 3 2 ^ 9 9

@ + 1 < 9 6 9 2% \ $ \ + 2 & $ 3 2 ^ 9 9
Three such numbers are there that are immediately preceded by a symbol and immediately followed by another number.

Thus, correct option is (a).