SOLUTION: How many 30cm square tiles are needed to cover the floor of a room measuring 3 metres by 4 and a half metres

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Question 828000: How many 30cm square tiles are needed to cover the floor of a room measuring 3 metres by 4 and a half metres
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The area of the 3cm tile is 0.03m%2A0.03m=9%2A10%5E%28-4%29+m%5E2.

The area of the room is 3m%2A4.5m=13.5%2Am%5E2.

How many of the small areas are in the big area?
%2813.5%29%2F%280.0009%29=highlight%2815000%29----that is how many of the 3 cm tiles will fit.