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Question

1 liter is equal to 1 cubic decimeter and 1 liter of water weighs 1 kilogram. What is the weight of water contained in a cylindrical container with radius equal to 50 centimeters and height equal to 1 meter?

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Solution

volume of cylinder=Ï€r2h

50centimeter

1m=100cm

volume=Ï€(50)2100=250000Ï€cm3

cubic decimeter=10 centimeters × 10 centimeters × 10 centimeters=1000cm3

1000cm3=1litre

1cm3=1/1000litre

250000Ï€cm3=250000Ï€/1000=250Ï€litre

1litre=1kg

250Ï€ litre=250Ï€ kg


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