A rubber ball floats on water with its `1//3^(rd)` volume outside water. What is the density of rubber?

Explanation

To find the density of the rubber ball that floats on water with one-third of its volume above the surface, we can follow these steps:

### Step 1: Understand the Problem
The rubber ball is floating in water, and we know that one-third of its volume is above the water. This means that two-thirds of its volume is submerged.

### Step 2: Define Variables
Let:
- \( V \) = total volume of the rubber ball
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