1. The problem is to add the numbers 372 and 25, but the result should be expressed in octal (base 8). 2. First, add the numbers in decimal: $372 + 25 = 397$. 3. To convert the decimal number 397 to octal, divide by 8 and record the remainders: - $397 \div 8 = 49$ remainder $5$ - $49 \div 8 = 6$ remainder $1$ - $6 \div 8 = 0$ remainder $6$ 4. Reading the remainders from bottom to top gives the octal number: $615_8$. 5. Therefore, $372 + 25 = 615$ in octal.