Mathematics
NULL
Medium
Question
Find the number of square tiles needed to cover a floor measuring 4 m × 9 m, leaving 0.25 m space around the room. Each square tile has side 25 cm.
A
425
B
476
✓ Official correct answer
C
450
D
350
Community credibility
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A
425
No member explanations yet for this option.
B
476
No member explanations yet for this option.
C
450
No member explanations yet for this option.
D
350
No member explanations yet for this option.
Explanation
Tiled region = 3.5 m × 8.5 m. Tile side = 0.25 m ⇒ 14 × 34 = 476 tiles.