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CBSE Class 10 Answered

plz answer
Asked by | 20 Dec, 2009, 08:10: PM
answered-by-expert Expert Answer

Volume of hemispherical tank = 1/2(4πR3)/3 = πD3/12

Half the volume of hemispherical tank = πD3/24 m3 = 1000πD3/24 lit

Time required to empty half the tank = half volume/volumetric rate = (1000πD3/24)/(25/7)

= (40x3x3x3x22/7)/(24/7) = 990 sec = 16.5 min

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Answered by | 20 Dec, 2009, 08:55: PM
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