Demand and Quantity demanded can be used in a sentence as follows:
The spectators had an urgent demand for concert tickets but the quantity demanded exceeded our capabilities.
<h3 /><h3>What is Demand?</h3>
Demand refers to the quest for something. When one demands a thing, he or she is supplied it if available. Quantitydemanded refers to the number of materials requested.
The two terms have been used appropriately in the sentence above.