A milk tank is in the form of frustum of a cone of height 3m with diameter of its upper& lower ends as 20m,12m respectively, f

2 thoughts on “A milk tank is in the form of frustum of a cone of height 3m with diameter of its upper& lower ends as 20m,12m respectively, f”

1. Answer:

   volume of a cone=22/7×10×6×3/3. m³=1320/7 m³=188.6 m³=188600 L

   per liter milk costs=25 ruppes

   188600 L milk costs=188600×25 ruppes=4715000 ruppes

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2. Answer:

   230

   Step-by-step explanation:

   given,

   h=16cm,r=20cm,r=8cm

   volume of frustum = πh/3(R²+r²+Rr)cm³

   volume of frustum=π(16)/3((20)²+8²+(20)(8))cm³

   8²+(20)(8))cm³

   10459.428cm³=10.459 l

   the cost of milk per litre = rs.22

   10.459l=22×10.459=rs.230.10

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