Mr Allie has to tile a kitchen floor measuring 5m×4m.The blue tiles he uses each measure 40cm×20cm.
a) How many tiles does Mr Allie need?
b) The tiles are sold in boxes containing 20 tiles. How many boxes should he buy?
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Answer:
area of the kitchen =5×4
20m=20000cm
area of the tiles =40×20
800cm
no of tiles = 20000÷800
=25 tiles
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