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Floor tiles are $25\ cm$ squares. How many tiles will be needed for a rectangular lawn $12\ m$ long and $10\ m$ wide. Find the total cost at the rate of $8$ per tile.​
Given: Floor tiles are $25\ cm$ squares. Size of rectangular lawn $12\ m$ long and $10\ m$ wide. rate per tile is $₹\ 8$.
To do: To find the total number of tiles needed for lawn and total cost of the tiles.
Solution:
Area of rectangular lawn$= 120\ m^2$
Area of each tile $= 0.25\ m$
Total number of tiles required $= \frac{120}{0.25}$
$= \frac{12000}{25}$
$= 480$ tiles
total cost $= 480×8$
$=₹3840$
Thus, total cost of the tiles is $₹\ 3840$.
 
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