Mathematics
NULL
Medium
Question
Bilal’s room floor is 8 m by 4 m. He tiles it with tiles of 25 cm × 20 cm. How many tiles will he need?
A
320 tiles
B
640 tiles
✓ Official correct answer
C
160 tiles
D
6.4 tiles
Community credibility
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A
320 tiles
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B
640 tiles
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C
160 tiles
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D
6.4 tiles
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Explanation
Floor = 32 m²; tile = 0.25 × 0.20 = 0.05 m². Number = 32 / 0.05 = 640.