To cover the floor - 40.
24 inch by 15 inch = 2 feet by 1.25 feet.
So, you will get five blocks the 24 inch way (10/2 = 5), and eight the 15 inch way 10/1.25 = 8).
5 x 8 = 40.
Since you did not give a) the height of the room and b) the thickness of the blocks, we must assume you wanted only one layer on the floor.
49 plus ten percent for breakage. Get 54.
18 10x10-inch tiles.
132
You'll need 81 16 by 16 inch blocks.12 ft = 144 in144 in * 144 in = 20736 in216 in * 16 in = 256 in220736 in2 / 256 in2 = 81
100
49 plus ten percent for breakage. Get 54.
66
To determine how many 16x16 inch blocks are needed for a 10x10 foot patio, first convert the patio dimensions to inches: 10 feet equals 120 inches. The area of the patio is 120 inches x 120 inches, which equals 14,400 square inches. Each 16x16 inch block has an area of 256 square inches. Dividing the patio area by the area of one block, you need 14,400 / 256 = 56.25 blocks, so you would need 57 blocks to cover the patio.
1.777777
18 10x10-inch tiles.
132
25
You'll need 81 16 by 16 inch blocks.12 ft = 144 in144 in * 144 in = 20736 in216 in * 16 in = 256 in220736 in2 / 256 in2 = 81
100
12 x 12 blocks (assumed as 12 inch x 12 inch) That means the blocks are 1 square foot each Hence to cover 240 square feet area, you would need 240 blocks
A half yard of fabric is 18 inches long (since a yard is 36 inches). To determine how many 10x10 inch squares can be cut from this, you can fit one square in the 18-inch length, but you cannot fit a full square in the 36-inch width. Therefore, you can only cut one 10x10 square from a half yard of fabric.
This is a non-trivial question because the curvature of the circle means that in some cases a whole block is required to cover only a tiny part of the circle.Covering a circle with a diameter of 4 feet would require 16 blocks measuring 12 inch * 12 inch. This is despite the fact that the total area of the blocks is more than 27% larger than the area of the circle. This was proved by Maurizio Morandi in May 2009.If the 12 inch blocks are blocks comprising 12 blocks of 1 sq inch each, which can be configured as 2*6 rectangles, or 2+3+3+2+2 shapes, the the problem becomes hugely complex.