“Integrity Is The Most Valuable And Respected Quality Of Leadership. Always Keep Your Word.”

Meaning and Basics of Arithmetic Progression, Derivation for nth term (General term) of Arithmetic Progression, Derivation for Sum to n terms of a Arithmetic Progression, Relationship between Arithmetic Progression and Arithmetic Mean

 NCERT EXERCISE 9.2
Question 4. How many terms of the A.P. $$-6, -\frac{11}{2}, -5, …$$ are needed to give the sum –25?