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9. a) A tile is a square of side 20cm . How many such tiles would be required to cover the floor of a square bathroom of side 3m

9 a A tile is a square of side 20cm How many such tiles would be required to cover the floor of a square bathroom of side 3m class=

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Answer:225 tiles

Step-by-step explanation:

area of floor=number of  tile * area of each tile

side*side= x *(side*side)

300*300=x * (20*20)

300/20*300/20=x

15*15=x

225=x

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