Multiple choice

The octal addition of (25)8 and (15)8 is:

  1. (42)8

  2. (40)8

  3. (41)8

  4. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In octal addition: 5 + 5 = 10 (decimal), which is 12 in octal (write 2, carry 1). Then 2 + 1 + 1 (carry) = 4. Result is 42.