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 1: Determine the dimensions of the resulting cuboid
When three cubes are joined end to end, the dimensions of the resulting cuboid will be:
- Length (L) = 3 × side of the cube = 3 × 5 cm = 15 cm
- Breadth (B) = side of the cube = 5 cm
- Height (H) = side of the cube = 5 cm

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