You can
put this solution on YOUR website!It takes 150 square feet of wood flooring to cover a 13 by 11 foot room, counting waste. At this rate, how much flooring, to the nearest foot, would it take to cover a 15 by 20 foot room?
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You could us a ratio equation:
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Let x = amt of flooring required for a 15 by 20 ft room
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Actual area of the 13 by 11 ft room
13 * 11 = 143 sq ft
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Actual area of the 15 by 20 ft room
15 * 20 = 300 sq ft
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=

Cross multiply:
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143x = 150 * 300
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143x = 45000
x =

x = 314.6853 ~ 315 sq ft of flooring required for a 15 by 20 ft room