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The surface area of two similar bottles are 12cm2 and 108cm2 respectively. If larger one has a volume of 810cm3.Find the volume of the smaller one. 

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A.S.F = 108 = 9
             12     1
L.S.F = √(9/1) = 3/1 
V.S.F =(3/1)27/
27/1 = 810/x 
27x = 810
 27      27   
  x = 30cm

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