Answer:
Sample 3 has the greatest density.
Step-by-step explanation:
Density=mass/volume
Sample 1,
volume = 15cm³, mass = 30 g
Density = 30g/15cm³ = 2 g/cm³
Sample 2,
volume = 20cm³, mass = 66g
Density = 66g/20cm³ = 3.3 g/cm³
Sample 3,
volume = 3cm³, mass = 12g
Density = 12g/3cm³ = 4 g/cm³
Sample 4,
volume = 48cm³, mass = 100g
Density = 100g/48cm³ = 2.08 g/cm³
Out of 4 samples, the density of sample 3 is greatest of all.