The length and breadth of a room are 12m by 9m. How many marble tiles are required to pave the floor if the tiles are square of 60 cm X 60 cm?
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area of the room = 12×9
in centimeters = 1200×900= 1080000 cm²
area of tile = 60 ×60=3600 cm²
number of tiles in a room=1080000÷3600
= 300 tiles
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