Math Chapter Wise Arithmetic English MCQ DSSSB TGT (SECTION-B) 28 DEC 2014 Q.The average of the squares of the numbers 0,1,2,....,n is– A1 n(n 1) n B1 n(2n 1) 6 C1 (n 1)(2n 1) 6 DNone of these Show answer Correct answer: 1 n(2n 1) 6