Ramesh takes 6.5 hours to go from city A to city B at 3 different speeds 30 kmph, 45 kmph, and 60 kmph

Ramesh takes 6.5 hours to go from city A to city B at 3 different speeds 30 kmph, 45 kmph, and 60 kmph covering the same distance with each speed. The respective mileages per liter of fuel are 11 km, 14 km and 18 km for the above speeds. Ramesh’s friend Arun is an efficient driver and wants to minimise his friend’s car’s fuel consumption. So he decides to drive Ramesh’s car one day from city A to city B. How much fuel will he be able to save?

1. 4.2 liters
2. 4.5 liters
3. 0.7 liters
4. 0.3 liters