The amount of water to the space that water did not occupy in a particular container.

The distance an airplane flies to the time travelling.

As a speed of a car increases, the length of travel time decreases.

The age of a used car to its resale value

The time a teacher spends checking papers to the number of students.

The time spent walking to the rate at which the person walks.

The area of the wall to the amount of paint used to cover it.