How many elements are between the second composite number from left end and first prime number from ...........

Logical Reasoning(Master ) Alpha-Numeric Series

Directions: Read the following alphanumeric series carefully and answer the questions given beside.

O 8 F # 4 @ M 2 E Q % R T & 6 Z * N S $ 7 A
Step 1: If a symbol is immediately preceded and followed by a letter then write it between 6 and Z.
Step 2: If a number is immediately preceded by a symbol and immediately followed by a letter then write it between M and 2.
Note: Step 2 is performed after completion of step 1.

How many elements are between the second composite number from left end and first prime number from right end in the sequence obtained after step 2?

None

One

Two

Three

More than three

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Explanation:

From the following explanation it is clear that there are three elements(@,M,7) between the second composite number from left end (4) and first prime number from right end (2) in the sequence after step 2.
Hence option 4 is correct.
Sequence after step 1:
O 8 F # 4 @ M 2 E Q R T & 6 % * Z N S $ 7 A
Sequence after step 2:
O 8 F # 4 @ M 7 2 E Q R T & 6 % * Z N S $ A
Common Explanation:
Given Sequence:
O 8 F # 4 @ M 2 E Q % R T & 6 Z * N S $ 7 A
Step 1: If a symbol is immediately preceded and followed by a letter then write it between 6 and Z.
Sequence after step 1:
There are two symbols which are immediately preceded and followed by a letter which are - % and *
O 8 F # 4 @ M 2 E Q R T & 6 % * Z N S $ 7 A
Step 2: If a number is immediately preceded by a symbol and immediately followed by a letter then write it between M and 2.
Sequence after step 2:
There is only one number '7' which is immediately preceded by a symbol '$' and immediately followed by letter 'A'.
O 8 F # 4 @ M 7 2 E Q R T & 6 % * Z N S $ A