Question

How many square tiles of side 9 cm will be needed to fit in a square floor of a bathroom of side 72 cm.

Answer 1

$\textbf{Answer :}$

Here, the area of each square tile

= (9 × 9) cm²

and the area of the floor

= (72 × 72) cm²

∴ the required number of tiles

= (area of the floor)/(area of each tile)

= (72 × 72)/(9 × 9)

= (8 × 8)

= 64

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