Anita has obtained 450 marks in an examination. If she obtained `75%` of the total marks, find the total marks.

Answer

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

### Step-by-Step Solution:

1. **Understand the Problem**:
We know that Anita scored 450 marks, which is 75% of the total marks. We need to find out what the total marks (let's call it \( x \)) are.

2. **Set Up the Equation**:
Since 75% of the total marks is equal to 450, we can express this mathematically as:
\[ \frac{75}{100} \times x = 450 \]

3. **Convert Percentage to Decimal**:
To simplify, we can convert 75% to a decimal:
\[ 0.75 \times x = 450 \]

4. **Isolate \( x \)**:
To find \( x \), we can rearrange the equation:
\[ x = \frac{450}{0.75} \]

5. **Perform the Division**:
Now, we will calculate \( \frac{450}{0.75} \):
\[ x = 450 \div 0.75 \]
To make the division easier, we can multiply both the numerator and the denominator by 100:
\[ x = \frac{450 \times 100}{75} = \frac{45000}{75} \]

6. **Simplify the Fraction**:
Now, we can simplify \( \frac{45000}{75} \):
\[ 45000 \div 75 = 600 \]

7. **Conclusion**:
Therefore, the total marks \( x \) is:
\[ x = 600 \]

### Final Answer:
The total marks are **600**.