A car's fuel efficiency is 30 miles per gallon (mpg)30 \text{ miles per gallon (mpg)}30 miles per gallon (mpg). How many km per liter is this? (1 mile≈1.609 km1 \text{ mile} \approx 1.609 \text{ km}1 mile≈1.609 km, 1 gallon≈3.785 liters1 \text{ gallon} \approx 3.785 \text{ liters}1 gallon≈3.785 liters)
12.75 km/L12.75 \text{ km/L}12.75 km/L
70.5 km/L70.5 \text{ km/L}70.5 km/L
0.078 km/L0.078 \text{ km/L}0.078 km/L
1.58 km/L1.58 \text{ km/L}1.58 km/L