Anita has obtained 520 marks in an examination. If she obtained `80%`of the total marks, find the total marks.

Answer

To find the total marks based on the information given, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Problem**:
We know that Anita scored 520 marks, which is 80% of the total marks. We need to find the total marks.

2. **Set Up the Equation**:
Let the total marks be represented by \( x \). According to the problem, 80% of \( x \) is equal to 520. We can write this as:
\[ \frac{80}{100} \times x = 520 \]

3. **Convert Percentage to Decimal**:
Simplifying \( \frac{80}{100} \) gives us \( 0.8 \). Thus, the equation can be rewritten as:
\[ 0.8x = 520 \]

4. **Solve for \( x \)**:
To find \( x \), we need to isolate it on one side of the equation. We can do this by dividing both sides by 0.8:
\[ x = \frac{520}{0.8} \]

5. **Calculate \( x \)**:
Now we perform the division:
\[ x = \frac{520 \times 10}{8} = \frac{5200}{8} = 650 \]

6. **Conclusion**:
Therefore, the total marks are \( 650 \).

### Final Answer:
The total marks are **650**.