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It is easiest to answer this question using the metric system.

148.5 pounds = 67.36 kilograms

So density = 67.36 / 30.5 kg per cm3 = 2.208 kg per cm3 = 2208 grams per cm3

Density of water = 1 gram per cm3

So specific gravity of the mass = density of the mass / density of water = 2208

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15y ago

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