2.5 litres of petrol
Given
A motorbike travels 330 km in 5 litres of petrol
Hence, distance covered in 2.5 litres of petrol can be calculated as follows:
Distance covered by bike in 2.5 litres of petrol =2.5×6
=165km
∴ the bike covers 165 km of distance in 2.5 litres of petrol