During 3 hours of driving in a car, 27 liters of gasoline were consumed. How many hours of driving will 96

During 3 hours of driving in a car, 27 liters of gasoline were consumed. How many hours of driving will 96 liters of petrol last if its consumption decreases by 1 liter per hour?

Let’s calculate the consumption of gasoline for 3 hours:
27: 3 = 9 liters.
Since it decreased by 1 liter, the new consumption will be equal to:
9-1 = 8 liters.
In order to find the time for which 96 liters of gasoline is enough, it is necessary to divide the amount by the new consumption. We get:
96/8 = 12 hours.