This is a classic density problem! Here's how to solve it:

Understanding Density

Density is a measure of how much mass is packed into a given volume. It's calculated using the formula:

* Density (D) = Mass (M) / Volume (V)

Solving the Problem

1. Identify the given values:

* Mass (M) = 30 grams

* Volume (V) = 10 cm³

2. Apply the density formula:

* Density (D) = 30 grams / 10 cm³

3. Calculate the density:

* Density (D) = 3 grams/cm³

Answer: The density of the solid object is 3 grams per cubic centimeter (g/cm³).