This is the basic and conceptual question from Chapter name- Arithmetic Progression
Chapter number- 9
In this question we have been given that there be an A.P.
first term a and common difference d.
Also, If an denotes its nth term and Sn is the sum of first n terms,
Now we have to find S22, if d = 22 and a22 = 149
CBSE DHANPAT RAI publications
Solutions of CBSE Mathematics