This is the basic and conceptual question from Chapter name- Arithmetic Progression
Chapter number- 9
In this question we have been given that the nth term of the A.P. 9, 7, 5, …. is same as the nth term of the A.P. 15, 12, 9, …
And we have to find n.
CBSE DHANPAT RAI publications
Understanding CBSE Mathematics