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A container , openedfrom the top and made up of a metal sheet, is in the from of a frustum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm respectively . Find the total cost of milk which can completely fill thecontainer at the rate of Rs 20per liter . Also find the cost of metal sheet used to make the conatainer, if it costs Rs 8 per100 cm^(2) |
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