`0.98% "of" 7824+4842div119.46-?=78`

Options

A. 30
B. 60
C. 40
D. 50

Explanation

To solve the equation \(0.98\% \text{ of } 7824 + \frac{4842}{119.46} - ? = 78\), we will approximate the values to make calculations easier.

### Step-by-Step Solution:

1. **Convert the Percentage to Decimal**:
\[ 0.98\% = \frac{0.98}{100} = 0.0098 \]

2. **Calculate \(0.98\% \text{ of } 7824\)**:
\[ 0.98\% \text{ of } 7824 = 0.0098 \times 7824 \approx 0.01 \times 7824 = 78.24 \text{ (using approximation)} \]

3. **Approximate \(119.46\) to \(120\)**:
\[ \frac{4842}{119.46} \approx \frac{4842}{120} \]

4. **Calculate \(\frac{4842}{120}\)**:
\[ \frac{4842}{120} \approx 40.35 \text{ (using approximation)} \]

5. **Combine the Results**:
\[ 78.24 + 40.35 \approx 118.59 \]

6. **Set Up the Equation**:
\[ 118.59 - ? = 78 \]

7. **Solve for \(?\)**:
\[ ? = 118.59 - 78 \approx 40.59 \]

8. **Round the Result**:
Since we are looking for an approximate value, we can round \(40.59\) to \(40\).

### Final Answer:
Thus, the value of \(?\) is approximately \(40\).