Kobayashi s house decorates the living room with a length of 8 meters and a width of 4 meters, if yo

Solution: It is known that the length of the living room = 8 meters, the width = 4 meters, and the area of the living room is obtained. Length and width.

32 sq.m.

And pave the square floor tiles, the side length of the floor tiles = 8 decimeters = meters, to obtain the area of a floor tile.

Side length Side length.

= square meters. The number of floor tiles is required.

Living room area The area of a floor tile.

50 pieces. A: A total of 50 floor tiles are required.

1. The volume of the hourglass = 1 3 ( * 1) * 1 = 3 decimeters The bottom area of the cuboid wooden box is 6 decimeters, so it can be covered with 18 decimeters of sand.

II.1180 Therefore, a total of 600 bricks are needed, and according to the figure, it can be seen that B bricks are 2 A bricks, so 2 B bricks and A are a group, a total of 200 groups, that is, B400 and A200.

2 is B8 yuan, then 8 * 400 + 5 * 200 = 4200 yuan.