To answer this question, you need to understand the format of packed numeric data.
Packed numeric data is a binary-coded decimal representation of a number. It is commonly used in mainframe systems. The format of packed numeric data includes the number of digits before and after the decimal point, as well as the sign position.
Let's go through each option to understand why it is correct or incorrect:
Option A) P7.2 - This option is correct. The "P" indicates packed numeric format. The number of digits before the decimal point is 7, and the number of digits after the decimal point is 2. This matches the given format of "7 positions before and 2 after decimal point".
Option B) N7.2 - This option is incorrect. The "N" indicates numeric format, not packed numeric format. Additionally, the number of digits before and after the decimal point does not match the given format.
Option C) S7.2 - This option is incorrect. The "S" indicates signed numeric format, not packed numeric format. Additionally, the number of digits before and after the decimal point does not match the given format.
Option D) 7.2 - This option is incorrect. It does not specify the format of the data. It only indicates the number of digits before and after the decimal point, but it does not indicate the packed numeric format or the sign position.
The correct answer is Option A) P7.2. This option is correct because it matches the given format of packed numeric data with 7 positions before and 2 after the decimal point, along with 1 sign position.