A solid body floating in water has `1//5th` of its volume above surface of water. What fraction of its volume will project upwards if it floats in a liquid of specific gravity 1.3?

Explanation

To solve the problem step by step, we will follow the principles of buoyancy and Archimedes' principle.

### Step 1: Understand the given information
We know that a solid body is floating in water and has \( \frac{1}{5} \) of its volume above the surface. This means that \( \frac{4}{5} \) of its volume is submerged in water.

### Step 2: Define the volume of the solid body
Let the total volume of the solid body be \( V \). Thus, the volume of the solid body above the water surface is:
\[
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