In a certain code language, '-' represents '+', '+' represents `'xx', 'xx'` represents `'div'` and `'div'` represents '-'. Find out the answer to the following question.
`27 - 9 + 3 - 3 div 3`

Options

A. 15
B. 12
C. 54
D. 50

Answer

To solve the problem step by step, we first need to decode the operations according to the code language provided:

1. **Identify the coded operations**:
- `-` represents `+`
- `+` represents `xx` (multiplication)
- `xx` represents `div` (division)
- `div` represents `-`

2. **Rewrite the expression**:
The original expression is:
\[ 27 - 9 + 3 - 3 \div 3 \]
Replacing the coded operations, we get:
\[ 27 + 9 \times 3 + 3 - 3 - 3 \]

3. **Follow the order of operations (BODMAS/BIDMAS)**:
According to BODMAS/BIDMAS, we first perform multiplication and division from left to right, followed by addition and subtraction.

4. **Calculate the multiplication**:
\[ 9 \times 3 = 27 \]
Now the expression becomes:
\[ 27 + 27 + 3 - 3 \]

5. **Perform the addition**:
\[ 27 + 27 = 54 \]
Now the expression is:
\[ 54 + 3 - 3 \]

6. **Continue with the addition**:
\[ 54 + 3 = 57 \]
Now the expression is:
\[ 57 - 3 \]

7. **Finally, perform the subtraction**:
\[ 57 - 3 = 54 \]

Thus, the final answer is:
\[ \boxed{54} \]