20 miles per gallon = ? kilometers per liter
20 miles per 3.8 liter = ? kilometers per liter
20 * 1.6 kilometers per 3.8 liters = ? kilometers per liter
32 kilometers per 3.8 liters = ? kilometers per liter
32 kilometers per 3.8 liters
(32) / (3.8) kilometers per (3.8) / (3.8) liters
8.4 kilometers per 1 liter.
The answer is definitely C, 8.4 kilometer/liter.