Question

A rectangular kitchen wall is due to be tiled the wall measures 350cm by 210cm the tiles measures 70cm by 30cm and cost 75p each how much does it cost to tile the wall. If i had to leave a gap between the tiles how might this affect the number of tiles i need

Answer 1

a. £ 26.25 b. We would require less than 35 tiles depending on the width of the gap.

Explanation:

a. To find the number of tiles needed, we divide the area of the room by the area of the each tile.

So, 350 cm × 210 cm ÷ (70 cm × 30 cm) = 5 × 7 = 35

So, we need 35 tiles.

Since each tile costs 75 p, it will cost 35 tiles × 75 p/tile to tile the wall = 2625 p = £ 26.25

b. If there had to be a gap between the tiles, we would require less than 35 tiles. The width of the gap would also determine the amount of tiles needed.