a cylindrical tank full of water is emptied by a pipe at the rate of 225 litres per minute. How much time will it take to empty half the tank , if the diameter of its base is 3m and it's height is 3.5m ?
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Answer:
Time needed to empty half the tank = 12375/225 = 55 minutes Ans.23-Feb-2016
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Step-by-step explanation:
Volume of cylindrical tank=π r²h
= π×(1.5)²×3.5
= 24.75m³= 24750litres
Rate of discharge or outflow =225 l/min
Time taken to empty the tank= 2475/225
= 110 minutes
= 1hr 50mins
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