What is the value of (12 + 22 + 32 + 42 + ----- + 102)	Options.
A) 2237 B) 269 C) 268 D) 385 E) 291
Explanation:   (12 + 22 + ….. + n2) = (1/6) n(n + 1) (2n + 1)   Here, n = 10   Therefore,   (12 + 22 + ….. + 102) = (1/6) 10 (10 + 1) ( 2 x 10 + 1)   = (1/6) x 10 x 11 x 21   = 385   ANSWER: 385
<result>D</result>
What is the value of (12 + 22 + 32 + 42 + ----- + 102)