<PRE><B>Question 1048609</B>
A concrete gutter is 4 m long, 30 cm wide at the top, and 20 cm at the bottom. If the gutter is 20 cm deep,how much water can accommodate? 
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Area of a cross-section:: (1/2)(30+20)*20 = 500 cm^2
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Volume = 500*30 = 15000 cm^3
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Ans: 15000 cm^3 = 15 litres of water
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Cheers,
Stan H.
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