Find the sum of the following series:

101 + 99 + 97 + … + 47

for the given AP the first term a is 101, and common difference d is a difference of second term and first term, which is 99 - 101 = - 2

To find: the sum of given AP


The formula for sum of AP is given by



Substituting the values in the above formula





s = 14 × 148


s = 2072


2