Problem 45. Cub with a hole
Is it possible to build a cube 3x3x3 with a hole 1x1x1 in the center using 13 bricks 1x1x2 ?
Hint. Paint bricks and cube in two colors, count number of small cubes 1x1x1 of each color.
Math Contest for 5-7 grades
Is it possible to build a cube 3x3x3 with a hole 1x1x1 in the center using 13 bricks 1x1x2 ?
Hint. Paint bricks and cube in two colors, count number of small cubes 1x1x1 of each color.
Posted by
Sergey Sobolev
at
4/04/2008 03:11:00 AM