Question

Square tiles off side 20cm are to be laid on the floor of a room 10 m buy 4.5 m.How many tiles will be needed ? find the cost of putting the tiles at rupees 131. 40 per tile.

Answer 1

Step-by-step explanation:

area of floor of room = 10×4.5= 45m²=450000cm²

area of a tile = (20)² = 400cm²

number of tiles = 450000/400 = 1125 tiles

cost of 1 tile = ₹131.40

cost of 1125 tiles = 131.40×1125 = ₹1,47,825.00

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