# If the sum of n terms of an A.P. be 3n2 + n and its common difference is 6, then its first term isA. 2B. 3C. 1D. 4

Here, Sn= 3n2 + n

d = 6

Putting n= 1

S1 = 3 + 1 = 4

Sum of first 1 term = first term = 4

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos  Champ Quiz | Arithmetic Progression34 mins  Champ Quiz | Arithmetic Progression30 mins  Lets Check Your Knowledge in A.P.49 mins  NCERT | Fundamental Theorem Of Arithmetic45 mins  Quiz on Arithmetic Progression Quiz32 mins  Arithmetic progression: Previous Year NTSE Questions34 mins  Fundamental Theorem of Arithmetic- 143 mins  Get to Know About Geometric Progression41 mins  NCERT | Solving Questions on Introduction of A.P42 mins  Arithmetic Progression Tricks and QUIZ37 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation view all courses 