Length and breadth of the floor of a room are 5m and 3m, respectively. Forty tiles. Each with area `1/16 m^2` are used to cover the floor partially. Find the ratio of the tiled and the non tiled portion of the floor.

The length and breadth of the floor of the room are 20 feet and 10 feet respectively. Square tiles of 2 feet length of different colours are to be laid on the floor. Black tiles are laid in the first row on all sides. If white tiles are laid in the one-third of the remaining and blue tiles in the rest, how many blue tiles will be there? (a) 16 (b) 24 (c) 32 (d) 48 (e) None of these

The length and breadth of a rectangular room are 15 m and 8 m respectively: (a) Find the perimeter of room. (b) Find the area of the floor of room. (c) Find the maximum possible length of the rod that can be put on the floor.

The length and broadth of room are 1075 cm and 825 cm, respectively. The floor is to be paved with square tiles of the largest possible size. The size of each tile is .