If the freezing ratio equal to (casting area / casting volume) / (riser area/riser volume) and volumetric ratio equal to (riser volume/casting volume) for a disc casting of 20cm diameter and 10cm thick are 1.4 and 0.8 respectively. calculate the corresponding values for a square disc of 20cm side and 10cm thick if the same cylindrical riser with height to diameter ratio of unity is used in both cases.
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distribution 6 and find the probability
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