Solid rock suspended in air by spring scale has m250 kg, Ask an Expert

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Solid rock suspended in air by spring scale has m=2.50 kg, When rock submerged in water, mass = 1.90 kg, When rock submerged in unknown liquid m = 1.25 kg

a) find volume of rock,

b) Density of rock,

c) Density of unknown liquid. (need to see step on how it's worked out)

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