What Is Arithmetic Mean If three or more than three terms are in A.P., then the numbers lying between first and last term are known as Arithmetic Means between them.i.e. The A.M. between the two given quantities a and b is A so that a, A, b are in A.P. i.e. A – a = b – ANote: A.M. of any n positive numbers a1, a2 ......an isn AM’s between two given numbers If in … [Read more...] about What Is Arithmetic Mean