Density = Mass / Volume

* Mass: 60 (units not specified, but could be grams, kilograms, etc.)

* Volume: 30 (units not specified, but could be cubic centimeters, liters, etc.)

Calculation:

Density = 60 / 30 = 2

Answer: The density of the object is 2. Since we don't know the units of mass and volume, we can't specify the units of density.