1.

A container, opened from the top and madeup of a metal sheet, is in the form of a frus-Itum of a cone of height 16 cm with radij ofits lower and upper ends as 8 cm and 20 cmrespectively. Find the cost of the milk whichcan completely fill the container, at the rateo/720 per litre. (take π-3.14) [HSLC, 15112.

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