Three cubes each of side `5c m` are joined end to end. Find the surface area of the resulting cuboid.

Explanation

To find the surface area of the resulting cuboid formed by joining three cubes of side 5 cm each, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the dimensions of the cubes**:
Each cube has a side length of 5 cm.

2. **Determine the dimensions of the resulting cuboid**:
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