SOLUTION: how many four inch square tiles would be needed to cover a rectangular floor that measures 28 feet by 40 feet

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Question 456024: how many four inch square tiles would be needed to cover a rectangular floor that measures 28 feet by 40 feet
Found 2 solutions by edjones, rfer:
Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
4^2=16 in"
28*12=336
40*12=480
336*480=161280
161280/16=10,080 tiles
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Ed

Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
28*40=1120 sq ft
1120*9=10,080 tiles