Concept:
To find the exact number of persons who watched the match, we need exact attendance data.
If only maximum capacity per pass is given, the total cannot be fixed.
Step 1: Checking Statement (I).
Given:
\[
1215 \text{ passes were sold}
\]
But this only gives the number of pass holders.
We do not know how many additional persons came with each pass holder.
So, Statement (I) alone is not sufficient.
Step 2: Checking Statement (II).
Given:
Each pass holder can take up to 4 persons.
This means one pass may represent:
\[
1,2,3,4,\text{ or }5 \text{ persons}
\]
But the number of passes sold is unknown.
So, Statement (II) alone is not sufficient.
Step 3: Checking both statements together.
From Statement (I):
\[
1215 \text{ passes sold}
\]
From Statement (II):
Each pass can allow at most:
\[
5 \text{ persons (including holder)}
\]
Thus total attendance can vary between:
Minimum:
\[
1215
\]
Maximum:
\[
1215 \times 5=6075
\]
Since the exact number can vary, it cannot be uniquely determined.
Hence, additional data are required.