Attachment:
2017-09-29_1044_003.png [ 6.42 KiB | Viewed 11 times ]
As it is clearly visible in the figure, we can draw 5 4 X 4 Squares along the length of the board.
Similarly, we can draw these 5 squares across the width of the board as marked in the figure
The total number of 4 X 4 squares that can be drawn across the board is 5*5 = 25(Option D)
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