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October 31st, 2009, 03:06 AM  #1 
Newbie Joined: Oct 2009 Posts: 7 Thanks: 0  A water tank has shape of an inverted circular cone of altit
A water tank has shape of an inverted circular cone of altitude 12ft and base radius 6ft. if water is being pumped into the tank at a rate of 10lit/min, approximate the rate at which the water level is rising when it is 3 ft deep please solve this its answer is 1.89ft/min 
October 31st, 2009, 08:18 AM  #2 
Guest Joined: Posts: n/a Thanks:  Re: A water tank has shape of an inverted circular cone of altit
Perhaps I am in error, but I get dh/dt= Area of water surface when 3 feet deep is 
November 1st, 2009, 03:06 AM  #3  
Global Moderator Joined: Dec 2006 Posts: 20,370 Thanks: 2007  Quote:
If the fill rate is 10 l/min, you'd need to know that 10 l/min = 0.353146667 ft³/min, which gives a numerically much smaller answer (0.04996... ft/min).  

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altit, circular, cone, inverted, shape, tank, water 
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