JEE Main 8 January 2020, Shift 2, Maths Q72

Question 72 of 75 in this shift, Maths question 22 of 25, Section B.

The sum,

\sum_{n=1}^{7} \frac{n(n+1)(2n+1)}{4}

is equal to __________.

Official answer

504.00

NTA final key (Jan 2020).

Chapter: Sequences and Series
Topic: No close match in our taxonomy
Idea tested: No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.