A container made up of metal sheet is the form of a frustrum of a cone of height 16 cm with radii of its lower and upper ends as 8 cm and 20 cm respectively . find the cost of milk, which can completely fill the container at the rate of Rs15 per litre and the cost of tge metal sheet, used if it cost Rs 5 per 100 cm ^2. (pie=3.14) [R 156.75, Rs 97.97]
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156.74 this is your answer.
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