If '+' means '-','-' means 'x', 'x' means '`div`', '`div`' means '+', then `15-3+10xx5div5= `……..
A. 22
B. 24
C. 48
D. 52

Options

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

Answer

To solve the expression `15 - 3 + 10 x 5 ÷ 5`, we need to first replace the operators according to the given meanings:

1. **Replace the operators:**
- '+' means '-'
- '-' means 'x'
- 'x' means 'div'
- 'div' means '+'

So, the expression becomes:
- `15 - 3 + 10 x 5 ÷ 5`
- becomes `15 x 3 - 10 div 5 + 5`

2. **Rewrite the expression with the new operators:**
- `15 x 3 - 10 div 5 + 5`
- This translates to: `15 x 3 - 10 ÷ 5 + 5`

3. **Now, solve the expression step by step following the order of operations (BODMAS/BIDMAS):**
- First, perform the multiplication and division from left to right:
- `15 x 3 = 45`
- `10 ÷ 5 = 2`
- Now substitute these values back into the expression:
- `45 - 2 + 5`

4. **Now, perform the subtraction and addition from left to right:**
- First, calculate `45 - 2 = 43`
- Then, add `5`: `43 + 5 = 48`

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