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A cylindrical water tank has a diameter of 14 meters and a height of 2
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10 Feb 2023, 06:12
10 Feb 2023, 06:12
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60% (01:24) correct
40% (01:06) wrong based on 5 sessions
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A cylindrical water tank has a diameter of 14 meters and a height of 20 meters. A water truck can fill π cubic meters of the tank every minute. How long in hours and minutes will it take the water truck to fill the water tank from empty to half full?
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8 hours and 10 minutes
Re: A cylindrical water tank has a diameter of 14 meters and a height of 2
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20 Feb 2023, 06:38
20 Feb 2023, 06:38
Expert Reply
OE
First find the volume of the cylindrical tank:
\(V=\pi r^2*h\) \(=980\pi\)
If the water truck can fill π cubic meters of the tank every minute, it will take 980 minutes to fill the tank completely; therefore, it will take 980 ÷ 2 = 490 minutes to fill the tank halfway. This is equal to 8 hours and 10 minutes.
First find the volume of the cylindrical tank:
\(V=\pi r^2*h\) \(=980\pi\)
If the water truck can fill π cubic meters of the tank every minute, it will take 980 minutes to fill the tank completely; therefore, it will take 980 ÷ 2 = 490 minutes to fill the tank halfway. This is equal to 8 hours and 10 minutes.
gmatclubot
Re: A cylindrical water tank has a diameter of 14 meters and a height of 2 [#permalink]
20 Feb 2023, 06:38
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