a room is 12m×10m.If it has to be tiled using tiles of size 10cm×12cm.find the number of tiles needed for the room
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dementions of room 12m*10m
ar=120msq.=1200000cmsq.
ar of tile = 12*10 = 120cmsq.
no. of tiles = 1200000/120=10000
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