Apana has to answer 20 questions in an assignment. She has answered 18 questions correctly. What percentage of questions has she got correct?

Answer

To find the percentage of questions Apana answered correctly, we can follow these steps:

### Step 1: Identify the total number of questions and the number of correct answers.
- Total number of questions = 20
- Number of questions answered correctly = 18

### Step 2: Use the formula for percentage.
The formula to calculate the percentage of correct answers is:
\[ \text{Percentage} = \left( \frac{\text{Number of correct answers}}{\text{Total number of questions}} \right) \times 100 \]

### Step 3: Substitute the values into the formula.
Substituting the values we have:
\[ \text{Percentage} = \left( \frac{18}{20} \right) \times 100 \]

### Step 4: Simplify the fraction.
Now, we simplify the fraction \( \frac{18}{20} \):
\[ \frac{18}{20} = 0.9 \]

### Step 5: Multiply by 100 to find the percentage.
Now, we multiply by 100 to convert it to a percentage:
\[ 0.9 \times 100 = 90 \]

### Conclusion
Apana answered 90% of the questions correctly.

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