A floor 10m long and 7m broad to be paved with square tiles of side 0.5m. Find the number of tiles required.
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area of floor =10×7
=70m
area of sq. tiles=.5×.5
=.25m
so, no. of tiles =70÷0.25
=280
=70m
area of sq. tiles=.5×.5
=.25m
so, no. of tiles =70÷0.25
=280
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