Write a rule for how to compare two quantities so that the second quantity has a value of 1 without using a diagram

I am quite confused with the second half of the question. The part where the second quantity has a value of 1 without any diagram. What diagram are you referring to? There must be some context in order to understand the question fully.

However, I can name a rule in comparing two quantities where the second quantity has a value of 1. That quantity is called the unit rate. For example, the ratio of the work done by a person is 5 pieces per hour. That means that for every 1 unit of time, you have a corresponding value of the other quantity. The first quantity is the number of work done, which is 5. The second quantity is the amount of time used to do the work. You compare the two quantities in terms of ratio.