Find the sum of the following arithmetic progressions:
50, 46, 42, …. To 10 terms
for the given AP the first term a is 50, and common difference d is a difference of second term and first term, which is 46 - 50 = - 4
To find: the sum of given AP
The formula for sum of AP is given by
Substituting the values in the above formula
s = 5 × 64
s = 320