a container open at the top is in the form of frustum of a cone oh height 24 cm with radii of its lower and upper ends 8cmand 20cm respectively . find cost of milk wich can completely fill the container at rate of ₹21per litre (use pi 22/7)
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Step-by-step explanation:
A container open at the top,is in the form of frustum of a cone of height 24cm with radii of its lower and circular ends as 8 cm and 20cm. Thus the volume of the frustum is 15674.88 cm³ .
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