One of the most important and exam oriented question from Chapter name- Arithmetic Progression
Chapter number- 9
Exercise :- 9.6
This type of question has been asked in previous years exams.
In this question we have been given The first term of an A.P. is 5, the last term is 45 and the sum is 400.
Now we have to Find the number of terms and the common difference
CBSE DHANPAT RAI publication
CBSE Mathematics Class 10th