SOLUTION: Jane can paint a 12-foot by 12-foot wall in 3/4 of an hour. How long will it take her to paint another wall that is 15 X 16 feet?

Question 976990: Jane can paint a 12-foot by 12-foot wall in 3/4 of an hour. How long will it take her to paint another wall that is 15 X 16 feet?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Jane can paint a 12-foot by 12-foot wall in 3/4 of an hour. How long will it take her to paint another wall that is 15 X 16 feet?
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Use a proportion::
time/area = time/area
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t/(15*16) = (3/4)/144
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t = (3/4)(15*16)/144
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t = (3*15*4)/144
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t = 15/12 = 5/4 = 1hr 15min
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Cheers,
Stan H.
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