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A casting of dimension 200x100x60 mm is casted in such a way that 60 mm dimension is vertical and 2/3rd of it is in

A casting of dimension 200x100x60 mm is casted in such a way that 60 mm dimension is vertical and 2/3rd of it is in drag. If the height of the cope is 100 mm and the cavity is fed by a bottom gate with a cross sectional area 100 mm, the time (seconds) taken to fill the cavity is Isabe

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