shanta runs an industry in a shed which is in the shape of a cuboid surmounted by a half cylinder .if the base of the shed is of dimension 7m x 15m, and the height of the cuboidal portion is 8m, find the volume of air that the shed can hold . further, suppose the machinery in the shed occupies a total space of 300mcube and there are 20 workers , each of whom occupy about 0.08mcube space on an average .then , how much air is in the shed ???
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