Interchange two mathematical operators and balance the incorrect equation given below :
`16 - 24 xx 2 div 10 + 104 = 0`

Options

A. `div and xx`
B. `+ and xx`
C. `- and +`
D. `+ and -`

Answer

To solve the equation `16 - 24 xx 2 div 10 + 104 = 0` by interchanging two mathematical operators, we will follow these steps:

### Step 1: Identify the Operators
The original equation contains the operators: subtraction (-), multiplication (xx), division (div), and addition (+).

### Step 2: Choose Operators to Interchange
We will interchange the multiplication (xx) and division (div) operators. This means we will replace `xx` with `div` and `div` with `xx`.

### Step 3: Rewrite the Equation
After interchanging the operators, the equation becomes:
`16 - 24 div 2 xx 10 + 104 = 0`

### Step 4: Solve the New Equation
Now, we will solve the new equation step by step:
1. **Calculate 24 div 2**:
\[ 24 \div 2 = 12 \]
So the equation now is:
\[ 16 - 12 xx 10 + 104 = 0 \]

2. **Calculate 12 xx 10**:
\[ 12 \times 10 = 120 \]
Now the equation is:
\[ 16 - 120 + 104 = 0 \]

3. **Combine the terms**:
- First, calculate \(16 - 120\):
\[ 16 - 120 = -104 \]
- Now add 104:
\[ -104 + 104 = 0 \]

### Conclusion
The equation balances correctly as:
\[ 0 = 0 \]
Thus, the interchanged operators that balance the equation are multiplication and division.