A car runs 9 km using 1 litre of petrol. How much distance will it cover in 3 litre petrol?

Answer

To solve the problem of how much distance a car will cover using 3 litres of petrol, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the distance covered per litre**:
The problem states that the car runs 9 km using 1 litre of petrol.

2. **Calculate the distance for 3 litres**:
To find out how much distance the car will cover with 3 litres of petrol, we multiply the distance covered per litre by the number of litres:
\[ \text{Distance covered in 3 litres} = \text{Distance per litre} \times \text{Number of litres} \]
\[ \text{Distance covered in 3 litres} = 9 \text{ km/litre} \times 3 \text{ litres} \]

3. **Perform the multiplication**:
\[ 9 \times 3 = 27 \text{ km} \]

4. **Conclusion**:
Therefore, the car will cover a distance of 27 km using 3 litres of petrol.

### Final Answer:
The car will cover **27 km** in 3 litres of petrol.

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