Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Number System
The average of the squares of the numbers 0, 1, 2, 3, 4, ...., n is
1
\(\rm \frac{1}{2}n(n+1)\)
2
\(\rm \frac{1}{6}n(2n+1)\)
3
\(\rm \frac{1}{6}(n+1)(2n+1)\)
4
More than one of the above
5
None of the above