how many tiles whose length and breadth of are 18 cm and 5 cm respectively will be needed to fit a rectangular region whose length and breadth are respectively 100 cm and 144 cm
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Area of tiles = 18 × 5 = 90 cm
Area of region = 100 × 144 = 14400 cm
No. of tiles = Area of region ÷ Area of tiles
= 14400 ÷ 90
= 160 tiles
So 160 tiles are required to fill the bottom surface of the region
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