A block of wood of volume `30 "cm"^3` floats it water with `20 "cm"^3` of its volume immersed.
Calculate the density.

Explanation

To solve the problem of calculating the density of the block of wood, we can follow these steps:

### Step 1: Understand the Given Information
We are given:
- Total volume of the block of wood, \( V_{total} = 30 \, \text{cm}^3 \)
- Volume of the block submerged in water, \( V_{submerged} = 20 \, \text{cm}^3 \)

### Step 2: Apply the Principle of Flotation
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