If the mathematical operator '+' means `'xx'`, '+' means '-', `'xx'` means '+' and '-' means `'div'`, then
`24+ 48 - 12 xx 4 div 2`= ?
A 6 B. `-6` C 16 D 28

Options

A. B
B. A
C. C
D. D

Answer

To solve the expression `24 + 48 - 12 xx 4 div 2` with the given operator meanings, we first need to replace each operator with its corresponding meaning:

1. **Replace the operators:**
- `+` means `xx` (which is multiplication)
- `-` means `div` (which is division)
- `xx` means `+` (which is addition)
- `div` means `-` (which is subtraction)

So, the expression becomes:
`24 xx 48 div 12 + 4 - 2`

2. **Substituting the operators:**
- Replace `xx` with `+`
- Replace `div` with `-`
- Replace `+` with `xx`
- Replace `-` with `div`

Thus, the expression translates to:
`24 + 48 - 12 * 4 / 2`

3. **Now, we will evaluate the expression using the order of operations (BODMAS/BIDMAS):**
- First, we handle the division and multiplication from left to right.

- Calculate `12 * 4`:
- `12 * 4 = 48`

- Now the expression is:
`24 + 48 - 48 / 2`

- Next, calculate `48 / 2`:
- `48 / 2 = 24`

- Now the expression simplifies to:
`24 + 48 - 24`

4. **Now, perform the addition and subtraction from left to right:**
- First, calculate `24 + 48`:
- `24 + 48 = 72`

- Then, subtract `24`:
- `72 - 24 = 48`

Thus, the final answer is **48**.