alleryStart learning →A floor 2 m long and 1 m wide is covered with square tiles of side 20 cm. How many tiles are needed?
A50
B10
C100
D25
Answer & Solution
Correct answer: A. 50
The floor is 200 x 100 = 20,000 sq cm and one tile is 20 x 20 = 400 sq cm, so 50 tiles.
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