39. Consider a chessboard of size 16 x 16 (instead of the standard 8 x 8), what is the total number of squares on such a chessboard?
(a) 256
(b) 408
(c) 1396
Ans39:(d) Sol: 1496; The number of squares will be 12+22+32+…..+162
16 squares are cut from a chessboard of length 8m. Calculate the perimeter of each square.