In mathematics, an arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant. Difference here means the second minus the first. For instance, the sequence 5, 7, 9, 11, 13, 15.. . is an arithmetic progression with common difference of 2. The Chapter deals with the topic of Arithmetic Progression. A sequence in which term differs from its preceding term by a constant is called an Arithmetic Progression, written as AP. Other subtopics that this chapter covers include Arithmetic Series Finding the general term of an AP, Arithmetic Mean, Sum of n terms of an AP and more.