The car that I own can go 150 km with 25 litres of petrol. How far can it go with 30 litres of petrol?

Question

Accepted Answer

To determine how far the car can go with 30 litres of petrol, we first need to understand the car's fuel efficiency based on the given information. The car can travel 150 km with 25 litres of petrol.

1. **Calculate the fuel efficiency**: 
   - The car's fuel efficiency is calculated as distance per litre of petrol. 
   - Fuel efficiency = Total distance / Total litres = 150 km / 25 litres = 6 km per litre.

2. **Calculate the distance for 30 litres**:
   - With the fuel efficiency of 6 km per litre, we can calculate the distance the car can travel with 30 litres of petrol.
   - Distance = Fuel efficiency × Number of litres = 6 km/litre × 30 litres = 180 km.

Therefore, the car can travel 180 km with 30 litres of petrol, which corresponds to Option 3.

**Explanation for why other options are incorrect**:

- **Option 1 (205 km)**: This option suggests a distance that is significantly higher than what is calculated based on the car's fuel efficiency. Given the efficiency of 6 km per litre, 30 litres would not allow the car to travel 205 km.

- **Option 2 (195 km)**: Similar to Option 1, this distance exceeds the calculated distance of 180 km based on the car's fuel efficiency. The car cannot travel 195 km with 30 litres of petrol at the given efficiency.

- **Option 4 (175 km)**: Although closer to the correct answer than Options 1 and 2, this option still does not match the calculated distance of 180 km. The car's efficiency of 6 km per litre results in a travel distance of 180 km with 30 litres, not 175 km.

In conclusion, based on the car's fuel efficiency of 6 km per litre, the correct distance the car can travel with 30 litres of petrol is 180 km, which is why Option 3 is the correct answer.