Q. The sum of the series $1 \bullet 3^{2} + 2 \bullet 5^{2} + 3 \bullet 7^{2} + ...$ upto 20 terms is
A) 188090
B) 189080
C) 199080
D) None of these
Explanation
The correct answer is Option A: 188090.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.