The length of a cold storage is double its breadth. Its height is `3\ m e t r e sdot` The area of its four walls (including doors) is `108\ m^2dot` Find its volume.

Explanation

To find the volume of the cold storage, we will follow a series of steps based on the information provided in the question.

### Step-by-Step Solution:

1. **Define Variables**:
- Let the breadth of the cold storage be \( b = x \) meters.
- Since the length is double the breadth, we have \( L = 2x \) meters.
- The height is given as \( h = 3 \) meters.
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