In a 8 x 8 chess board what is the total number of squares.
Pick.
A) 238  B) 204  C) 678  D) 169  E) 161
Ans: The total number of squares in a n x n chess board is equal to "the sum of first n natural number squares"   i.e., n(n+1)(2n+1)6n(n+1)(2n+1)6   So Substituting 8 in the above formula we get 204   Answer:204
<result>B</result>
In a 8 x 8 chess board what is the total number of squares.