Question

A tile is a square of side 25cm. How many such tiles would be required to cover the floor of a square bathroom of side 3m?

Answer 1

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Answer 2

Let n no. of square tiles cover the bathroom's floor.
 the length of square tile = l = 25cm = 0.25m
the length of square bathroom = L = 3m
A/Q.
Area of Bathroom's floor = n(Area of tile)
⇒ L² =n×l²
⇒ 3² = n×(0.25)²
⇒ 9 = n(0.0625)
⇒ n = 9/0.0625 = 144
Therefore 144 tile are required to cover the Bathroom's floor .