The 5*5 grid shown contains a collection of squares with sizes from 1*1 to 5*5. How many of these squares contain the black square?
+9479 number of 1x1 squares that contain the black square = 1
number of 2x2 squares that contain the black square = 4
number of 3x3 squares that contain the black square = 4
number of 4x4 squares that contain the black square = 4
number of 5x5 squares that contain the black square = 1
I counted a total of 14 squares that contain the black square.
+9479 number of 1x1 squares that contain the black square = 1
number of 2x2 squares that contain the black square = 4
number of 3x3 squares that contain the black square = 4
number of 4x4 squares that contain the black square = 4
number of 5x5 squares that contain the black square = 1
I counted a total of 14 squares that contain the black square.
