What would be the correct last digit of the DEA number BS5927683 if it were accurate?

What would be the correct last digit of the DEA number BS5927683 if it were accurate?

• A. 3
• B. 0
• C. 1
• D. 7

Answer: (C)

To determine the correct last digit of a DEA number, a specific mathematical check can be performed. This method involves using the first six digits of the DEA number to calculate a checksum. For the DEA number BS5927683, the procedure is as follows: 1. **Identify the digits**: The DEA number BS5927683 can be broken down into its significant digits: 5, 9, 2, 7, 6, 8. 2. **Odd and Even positions**: The positions of these digits are taken into account: - Odd positions are 5 (1st), 2 (3rd), 6 (5th) which gives 5 + 2 + 6 = 13. - Even positions are 9 (2nd), 7 (4th), 8 (6th) which gives 9 + 7 + 8 = 24. 3. **Calculate the sum**: - Multiply the sum of the even positions by 2: 24 × 2 = 48. - Now combine this with the sum of the odd positions: 48 + 13 = 61. 4. **Finding the last digit**: The final

To determine the correct last digit of a DEA number, a specific mathematical check can be performed. This method involves using the first six digits of the DEA number to calculate a checksum.

For the DEA number BS5927683, the procedure is as follows:

1. Identify the digits: The DEA number BS5927683 can be broken down into its significant digits: 5, 9, 2, 7, 6, 8.

2. Odd and Even positions: The positions of these digits are taken into account:

• Odd positions are 5 (1st), 2 (3rd), 6 (5th) which gives 5 + 2 + 6 = 13.

• Even positions are 9 (2nd), 7 (4th), 8 (6th) which gives 9 + 7 + 8 = 24.

3. Calculate the sum:

• Multiply the sum of the even positions by 2: 24 × 2 = 48.

• Now combine this with the sum of the odd positions: 48 + 13 = 61.

4. Finding the last digit: The final