Question

How many tiles 400 cm square in size are needed to cover a floor which is square in shape each side of the floor is 8 m
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Answer 1

Answer:

300

Step-by-step explanation:

=12*100*100= 120000 square cm. Area of each tile is 20*20=400 square cm. 120000/400 =300.

hence 300 tiles will be required to cover the floor.

Answer 2

Answer:

1600 tiles

Step-by-step explanation:

Total area = 640000 square cm

640000/400 = 1600 tiles