<PRE><B>Question 939695</B>
to mow a lawn 10 m by 10 m takes 1 hour, how long will it take to mow a lawn 20 m by 12 m?
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time/area = time/area
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t/(20*12) = 1/(10*10)
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t = 240/100
time = 2.4 hrs = 2hr 24min
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Cheers,
Stan H.
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