Question

A rectanglular floor with length and breadth 20m and 15m respectively

needs to be covered with square tiles of length 20cm. How many such tiles

are required to cover the rectangular floor​

Answer 1

Answer:

total area you need to cover is 1.1*(400 x 250)/(20x20) =275 tiles

Step-by-step explanation:

So I’ll answer this like you were actually going to tile. Whenever I do that I don’t care about how much grout I’ll have because it’s always best to estimate total square footage, further you add 10 % for breakages.

So the total area you need to cover is 1.1*(400 x 250)/(20x20) =275 tiles. Now depending on how you buy tiles a 20x20 might come in packs of 25, but it might well be less. I would always estimate up, this means you’ll probably buy 280 tiles