A student wishes to determine the density of an irregularly-shaped stone.
First he finds the mass of the stone. Next he lowers the stone into a measuring cylinder containing water.
The diagrams show the measuring cylinder before and after the stone is lowered into it.
How should the student calculate the density of the stone?
1 )
mass of stone × reading 2
2 )
mass of stone × (reading 2 – reading 1)
3 )
mass of stone ÷ reading 2
mass of stone ÷ (reading 2 – reading 1)
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