Chessboard
Probability
Level
2
Calculate the total number of squares formed by the grid lines of a standard 8x8 chessboard.
64
204
65
impossible to count
100
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1 solution
we will start counting from small squares......That is the no. of smallest squares are (8x8)then let us count squares of grid 2x2 .....If you count wisely you will find there are 7 such grids in length and breadth , hence such squares are 7*7 ...... In this way the total no. of squares are (8x8)+(7x7)+(6x6)+5x5+4x4+3x3+2x2+1x1=204