sum the squares of first hundred natural numbers

M4maths Previous Puzzles

17 Oct 2012 sum of squares

sum the squares of first hundred natural numbers

OPtion

1) 345670
2) 342750
3) 453750
4) 338750
5) 338350
6) 444450
7) 231450
8) 123450
9) 453600
10) none of these

Solution

formula for the sum of squares of successive natural numbers
= n(n+1)(2n+1)/6

Correct Option: 5 Best Solution (0)