A room has a floor measuring 15m by 8 m. It has to be covered with tiles of size 50cm by 25cm . How many tiles are required ?If a carpet is laid on the floor so that a space of 1.5 m is left around the edges of floor , what fraction of the floor is uncovered.
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area of floor÷area of 1 tile=120×100×100/1250=960 tiles
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15000cm*8000cm=120000000divide by 50*25=1250 = 960tiles
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