Problems of finding the no of bricks/tiles required

Riya wants to cover the floor of a hall 15 m long and 4 m wide with square tiles. If each square tile is of side 25 cm, find the number of tiles required to cover the floor of the room.

Bob wants to cover the floor of a room 3m wide and 4m long by squared tiles.If each square tile is of side 0.5m, then find the number of tiles required to cover the floor of the room.

Ravish wants to cover his room which is 3m wide and 4m long by squared tiles.If each square tiles is of side 0.5m, then find the number of tiles required to cover the floor of his room.

Sabina wants to cover the floor of her room whose length is 4 m and breadth is 3m by square tiles. If each square tile is of side 20cm. then find the number of tiles required to cover the floor of her room.

A lane, 150 m long and 9 m wide, is to be paved with bricks, each measuring 22.5 cm by 7.5 cm. find the number of bricks required.

A lane 180m long and 5m wide is to be paved with bricks of length 20cm and breadth 15cm. Find the cost of bricks that are required, at the rate of Rs 750 per thousand.

The floor dimensions of a conference hall are 100 ft xx 20 ft. Find the number of tiles required for flooring with square tiles of side 2 ft each.