What is the BCD result of adding decimal 7 and decimal 5?

Options

  • A. 0001 0010
  • B. 0000 1100
  • C. 0001 0001
  • D. 0010 0000
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

A. 0001 0010

Detailed Explanation

Correct Answer: (A) 0001 0010
7 + 5 = 12. In BCD, 12 is represented as 0001 0010.
First add 0111 + 0101 = 1100. Since 1100 is greater than 1001, add correction 0110: 1100 + 0110 = 1 0010. The result is 0001 0010 in BCD.