A room is 7.5 m long and 4.5 m wide. Its floor is to be paved with square tiles. How many
tiles will be needed if each side of the tile is 15 cm?
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Answer:
Correct option is
D
Rs. 14875
Area of room → Length X Breadth
Area of room → 1150 ×630 → 724500 sq. cm
Area of 1 tile → 23×9 → 207 sq. cm
Number of tiles required →
Area of tile
Area of room
Number of tiles required →
207
724500
→ 3500
Cost of tiling → (Number of tiles) × (Cost of 1 tile) → 3500×4.25 → 14875
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