A quantity is a value that represents the amount of something. It is the answer to the question of "how much?" or "how many?" The quantity of something can be expressed in different units of measure. Consider the following example.

The quantity of the given rice can be expressed as a bowl of rice. It can be measured and calculated as 185 grams. It can also be counted as 6328 grains. Quantities are discrete, such as counting the number of tickets, or continuous, such as measuring the age of a person. Discrete Quantity & & Continuous Quantity Number of tickets & & Age of a person Amount of rice & & Time of day

A quantity can be represented not only by a number but also by variables or algebraic expressions.